672636432 has 40 divisors (see below), whose sum is σ = 1871310784. Its totient is φ = 206964864.

The previous prime is 672636413. The next prime is 672636443. The reversal of 672636432 is 234636276.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 538348 + ... + 539595.

Almost surely, 2^672636432 is an apocalyptic number.

It is an amenable number.

672636432 is an abundant number, since it is smaller than the sum of its proper divisors (1198674352).

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

672636432 is a wasteful number, since it uses less digits than its factorization.

672636432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077967 (or 1077961 counting only the distinct ones).

The product of its digits is 217728, while the sum is 39.

The square root of 672636432 is about 25935.2353372781. The cubic root of 672636432 is about 876.1802552270.

The spelling of 672636432 in words is "six hundred seventy-two million, six hundred thirty-six thousand, four hundred thirty-two".