3131664402 has 16 divisors (see below), whose sum is σ = 6276862080. Its totient is φ = 1041632592.

The previous prime is 3131664377. The next prime is 3131664433. The reversal of 3131664402 is 2044661313.

It is a self number, because there is not a number n which added to its sum of digits gives 3131664402.

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, 560877 + ... + 566432.

It is an arithmetic number, because the mean of its divisors is an integer number (392303880).

Almost surely, 2^3131664402 is an apocalyptic number.

3131664402 is an abundant number, since it is smaller than the sum of its proper divisors (3145197678).

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

3131664402 is a wasteful number, since it uses less digits than its factorization.

3131664402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127777.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 3131664402 is about 55961.2759146894. The cubic root of 3131664402 is about 1463.0474287575.

The spelling of 3131664402 in words is "three billion, one hundred thirty-one million, six hundred sixty-four thousand, four hundred two".