309315342 has 32 divisors (see below), whose sum is σ = 721440000. Its totient is φ = 88375224.

The previous prime is 309315329. The next prime is 309315359. The reversal of 309315342 is 243513903.

309315342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73092 + ... + 77207.

It is an arithmetic number, because the mean of its divisors is an integer number (22545000).

Almost surely, 2^309315342 is an apocalyptic number.

309315342 is an abundant number, since it is smaller than the sum of its proper divisors (412124658).

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

309315342 is a wasteful number, since it uses less digits than its factorization.

309315342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150325 (or 150311 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 309315342 is about 17587.3631337958. The cubic root of 309315342 is about 676.2913310190.

The spelling of 309315342 in words is "three hundred nine million, three hundred fifteen thousand, three hundred forty-two".