642002204 has 6 divisors (see below), whose sum is σ = 1123503864. Its totient is φ = 321001100.

The previous prime is 642002183. The next prime is 642002227. The reversal of 642002204 is 402200246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80250272 + ... + 80250279.

It is an arithmetic number, because the mean of its divisors is an integer number (187250644).

Almost surely, 2^642002204 is an apocalyptic number.

It is an amenable number.

642002204 is a deficient number, since it is larger than the sum of its proper divisors (481501660).

642002204 is a wasteful number, since it uses less digits than its factorization.

642002204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160500555 (or 160500553 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 642002204 is about 25337.7624110733. The cubic root of 642002204 is about 862.6716108570.

The spelling of 642002204 in words is "six hundred forty-two million, two thousand, two hundred four".