438225508 has 12 divisors (see below), whose sum is σ = 876451072. Its totient is φ = 187810920.

The previous prime is 438225503. The next prime is 438225527. The reversal of 438225508 is 805522834.

438225508 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (438225503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7825428 + ... + 7825483.

Almost surely, 2^438225508 is an apocalyptic number.

It is an amenable number.

438225508 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438225508 is a wasteful number, since it uses less digits than its factorization.

438225508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15650922 (or 15650920 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 438225508 is about 20933.8364376910. The cubic root of 438225508 is about 759.5666435263.

It can be divided in two parts, 4382 and 25508, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 438225508 in words is "four hundred thirty-eight million, two hundred twenty-five thousand, five hundred eight".