438513328 has 20 divisors (see below), whose sum is σ = 926858088. Its totient is φ = 199324160.

The previous prime is 438513301. The next prime is 438513353. The reversal of 438513328 is 823315834.

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 3 ways as a sum of consecutive naturals, for example, 1245601 + ... + 1245952.

Almost surely, 2^438513328 is an apocalyptic number.

It is an amenable number.

438513328 is an abundant number, since it is smaller than the sum of its proper divisors (488344760).

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

438513328 is a wasteful number, since it uses less digits than its factorization.

438513328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491572 (or 2491566 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 438513328 is about 20940.7098256005. The cubic root of 438513328 is about 759.7328978276.

The spelling of 438513328 in words is "four hundred thirty-eight million, five hundred thirteen thousand, three hundred twenty-eight".