438513396 has 24 divisors (see below), whose sum is σ = 1024089024. Its totient is φ = 146043840.

The previous prime is 438513373. The next prime is 438513433. The reversal of 438513396 is 693315834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000 + ... + 29631.

It is an arithmetic number, because the mean of its divisors is an integer number (42670376).

Almost surely, 2^438513396 is an apocalyptic number.

It is an amenable number.

438513396 is an abundant number, since it is smaller than the sum of its proper divisors (585575628).

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

438513396 is a wasteful number, since it uses less digits than its factorization.

438513396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31831 (or 31829 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 438513396 is about 20940.7114492321. The cubic root of 438513396 is about 759.7329370981.

The spelling of 438513396 in words is "four hundred thirty-eight million, five hundred thirteen thousand, three hundred ninety-six".