642382032 has 40 divisors (see below), whose sum is σ = 1668677920. Its totient is φ = 212941440.

The previous prime is 642382021. The next prime is 642382067. The reversal of 642382032 is 230283246.

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, 28282 + ... + 45657.

It is an arithmetic number, because the mean of its divisors is an integer number (41716948).

Almost surely, 2^642382032 is an apocalyptic number.

It is an amenable number.

642382032 is an abundant number, since it is smaller than the sum of its proper divisors (1026295888).

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

642382032 is a wasteful number, since it uses less digits than its factorization.

642382032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74131 (or 74125 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 642382032 is about 25345.2565976358. The cubic root of 642382032 is about 862.8417048913.

The spelling of 642382032 in words is "six hundred forty-two million, three hundred eighty-two thousand, thirty-two".