313220428 has 24 divisors (see below), whose sum is σ = 563763200. Its totient is φ = 152182800.

The previous prime is 313220423. The next prime is 313220431. The reversal of 313220428 is 824022313.

It is not an unprimeable number, because it can be changed into a prime (313220423) 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, 29653 + ... + 38803.

Almost surely, 2^313220428 is an apocalyptic number.

It is an amenable number.

313220428 is a deficient number, since it is larger than the sum of its proper divisors (250542772).

313220428 is a wasteful number, since it uses less digits than its factorization.

313220428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9397 (or 9395 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 313220428 is about 17698.0345801448. The cubic root of 313220428 is about 679.1254819159.

The spelling of 313220428 in words is "three hundred thirteen million, two hundred twenty thousand, four hundred twenty-eight".