642032052 has 48 divisors (see below), whose sum is σ = 1521811200. Its totient is φ = 210637440.

The previous prime is 642032033. The next prime is 642032087. The reversal of 642032052 is 250230246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367902 + ... + 369642.

It is an arithmetic number, because the mean of its divisors is an integer number (31704400).

Almost surely, 2^642032052 is an apocalyptic number.

It is an amenable number.

642032052 is an abundant number, since it is smaller than the sum of its proper divisors (879779148).

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

642032052 is a wasteful number, since it uses less digits than its factorization.

642032052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 642032052 is about 25338.3514065142. The cubic root of 642032052 is about 862.6849797744.

Adding to 642032052 its reverse (250230246), we get a palindrome (892262298).

The spelling of 642032052 in words is "six hundred forty-two million, thirty-two thousand, fifty-two".