313220402 has 16 divisors (see below), whose sum is σ = 525045024. Its totient is φ = 138900000.

The previous prime is 313220399. The next prime is 313220419. The reversal of 313220402 is 204022313.

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, 172724 + ... + 174527.

It is an arithmetic number, because the mean of its divisors is an integer number (32815314).

Almost surely, 2^313220402 is an apocalyptic number.

313220402 is a deficient number, since it is larger than the sum of its proper divisors (211824622).

313220402 is a wasteful number, since it uses less digits than its factorization.

313220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347305.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 313220402 is about 17698.0338455999. The cubic root of 313220402 is about 679.1254631248.

Adding to 313220402 its reverse (204022313), we get a palindrome (517242715).

The spelling of 313220402 in words is "three hundred thirteen million, two hundred twenty thousand, four hundred two".