642352602 has 16 divisors (see below), whose sum is σ = 1340562240. Its totient is φ = 204808032.

The previous prime is 642352591. The next prime is 642352603. The reversal of 642352602 is 206253246.

It is a self number, because there is not a number n which added to its sum of digits gives 642352602.

It is not an unprimeable number, because it can be changed into a prime (642352603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327227 + ... + 2327502.

It is an arithmetic number, because the mean of its divisors is an integer number (83785140).

Almost surely, 2^642352602 is an apocalyptic number.

642352602 is an abundant number, since it is smaller than the sum of its proper divisors (698209638).

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

642352602 is a wasteful number, since it uses less digits than its factorization.

642352602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654757.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 642352602 is about 25344.6760089767. The cubic root of 642352602 is about 862.8285279872.

The spelling of 642352602 in words is "six hundred forty-two million, three hundred fifty-two thousand, six hundred two".