438274225 has 27 divisors (see below), whose sum is σ = 561007713. Its totient is φ = 339649440.

The previous prime is 438274183. The next prime is 438274231. The reversal of 438274225 is 522472834.

The square root of 438274225 is 20935.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3301489 + 434972736 = 1817^2 + 20856^2 .

It is not a de Polignac number, because 438274225 - 2¹⁹ = 437749937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5547736 + ... + 5547814.

Almost surely, 2^438274225 is an apocalyptic number.

438274225 is the 20935-th square number.

438274225 is the 10468-th centered octagonal number.

It is an amenable number.

438274225 is a deficient number, since it is larger than the sum of its proper divisors (122733488).

438274225 is an frugal number, since it uses more digits than its factorization.

438274225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 137 counting only the distinct ones).

The product of its digits is 107520, while the sum is 37.

The cubic root of 438274225 is about 759.5947891852.

The spelling of 438274225 in words is "four hundred thirty-eight million, two hundred seventy-four thousand, two hundred twenty-five".