642832304 has 20 divisors (see below), whose sum is σ = 1264079064. Its totient is φ = 316618368.

The previous prime is 642832279. The next prime is 642832363. The reversal of 642832304 is 403238246.

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, 298757 + ... + 300900.

Almost surely, 2^642832304 is an apocalyptic number.

It is an amenable number.

642832304 is a deficient number, since it is larger than the sum of its proper divisors (621246760).

642832304 is a wasteful number, since it uses less digits than its factorization.

642832304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599732 (or 599726 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 642832304 is about 25354.1378082553. The cubic root of 642832304 is about 863.0432582251.

The spelling of 642832304 in words is "six hundred forty-two million, eight hundred thirty-two thousand, three hundred four".