309025968 has 40 divisors (see below), whose sum is σ = 804161328. Its totient is φ = 102254592.

The previous prime is 309025931. The next prime is 309025973. The reversal of 309025968 is 869520903.

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, 16921 + ... + 30072.

Almost surely, 2^309025968 is an apocalyptic number.

It is an amenable number.

309025968 is an abundant number, since it is smaller than the sum of its proper divisors (495135360).

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

309025968 is a wasteful number, since it uses less digits than its factorization.

309025968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47141 (or 47135 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 309025968 is about 17579.1344496821. The cubic root of 309025968 is about 676.0803681160.

The spelling of 309025968 in words is "three hundred nine million, twenty-five thousand, nine hundred sixty-eight".