438923928 has 32 divisors (see below), whose sum is σ = 1099125360. Its totient is φ = 146065920.

The previous prime is 438923909. The next prime is 438923939. The reversal of 438923928 is 829329834.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13 + ... + 29628.

Almost surely, 2^438923928 is an apocalyptic number.

It is an amenable number.

438923928 is an abundant number, since it is smaller than the sum of its proper divisors (660201432).

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

438923928 is a wasteful number, since it uses less digits than its factorization.

438923928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30267 (or 30263 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 438923928 is about 20950.5114018727. The cubic root of 438923928 is about 759.9699480268.

The spelling of 438923928 in words is "four hundred thirty-eight million, nine hundred twenty-three thousand, nine hundred twenty-eight".