√438 = 20.9284495365. 438 is not a perfect square; the result is irrational.

Is 438 a perfect square?

No, 438 is not a perfect square. Its square root is irrational.

What is 20.9284495365 squared?

20.9284495365 squared is approximately 438. (20.9284495365)² ≈ 438

Instant answer with step-by-step solution

√438 = 20.9284495365

√438 = 20.9284495365

⚠ 438 is not a perfect square — result rounded to 10 significant figures

We need to find √438 — a number that when multiplied by itself equals 438.
438 is not a perfect square. Its square root is irrational.
It falls between √400 = 20 and √441 = 21.
Using the formula √N = N^(1/2): √438 = 438^0.5 = 20.9284495365
Verification: 20.9284495365 × 20.9284495365 ≈ 438 ✓ (rounded to 10 significant figures)

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