438022672 has 20 divisors (see below), whose sum is σ = 885568320. Its totient is φ = 209488928.

The previous prime is 438022633. The next prime is 438022693. The reversal of 438022672 is 276220834.

It is a super-2 number, since 2×438022672² = 383727722372039168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594772 + ... + 595507.

It is an arithmetic number, because the mean of its divisors is an integer number (44278416).

Almost surely, 2^438022672 is an apocalyptic number.

It is an amenable number.

438022672 is an abundant number, since it is smaller than the sum of its proper divisors (447545648).

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

438022672 is a wasteful number, since it uses less digits than its factorization.

438022672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190310 (or 1190304 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 438022672 is about 20928.9911844790. The cubic root of 438022672 is about 759.4494350469.

The spelling of 438022672 in words is "four hundred thirty-eight million, twenty-two thousand, six hundred seventy-two".