642110832 has 60 divisors (see below), whose sum is σ = 1960388664. Its totient is φ = 194578560.

The previous prime is 642110809. The next prime is 642110879. The reversal of 642110832 is 238011246.

642110832 is a `hidden beast` number, since 642 + 1 + 10 + 8 + 3 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 642110796 and 642110805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201103 + ... + 204270.

Almost surely, 2^642110832 is an apocalyptic number.

It is an amenable number.

642110832 is an abundant number, since it is smaller than the sum of its proper divisors (1318277832).

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

642110832 is a wasteful number, since it uses less digits than its factorization.

642110832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405398 (or 405389 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 642110832 is about 25339.9059193202. The cubic root of 642110832 is about 862.7202633416.

The spelling of 642110832 in words is "six hundred forty-two million, one hundred ten thousand, eight hundred thirty-two".