√436 = 20.8806130178. 436 is not a perfect square; the result is irrational.

Is 436 a perfect square?

No, 436 is not a perfect square. Its square root is irrational.

What is 20.8806130178 squared?

20.8806130178 squared is approximately 436. (20.8806130178)² ≈ 436

Instant answer with step-by-step solution

√436 = 20.8806130178

√436 = 20.8806130178

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

We need to find √436 — a number that when multiplied by itself equals 436.
436 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): √436 = 436^0.5 = 20.8806130178
Verification: 20.8806130178 × 20.8806130178 ≈ 436 ✓ (rounded to 10 significant figures)

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