309313474 has 8 divisors (see below), whose sum is σ = 478937088. Its totient is φ = 149667780.

The previous prime is 309313469. The next prime is 309313489. The reversal of 309313474 is 474313903.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2494402 + ... + 2494525.

It is an arithmetic number, because the mean of its divisors is an integer number (59867136).

Almost surely, 2^309313474 is an apocalyptic number.

309313474 is a deficient number, since it is larger than the sum of its proper divisors (169623614).

309313474 is a wasteful number, since it uses less digits than its factorization.

309313474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988960.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 309313474 is about 17587.3100274033. The cubic root of 309313474 is about 676.2899696093.

The spelling of 309313474 in words is "three hundred nine million, three hundred thirteen thousand, four hundred seventy-four".