309599996 has 6 divisors (see below), whose sum is σ = 541800000. Its totient is φ = 154799996.

The previous prime is 309599989. The next prime is 309600001. The reversal of 309599996 is 699995903.

309599996 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 as a sum of consecutive naturals, namely, 38699996 + ... + 38700003.

It is an arithmetic number, because the mean of its divisors is an integer number (90300000).

Almost surely, 2^309599996 is an apocalyptic number.

It is an amenable number.

309599996 is a deficient number, since it is larger than the sum of its proper divisors (232200004).

309599996 is a wasteful number, since it uses less digits than its factorization.

309599996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77400003 (or 77400001 counting only the distinct ones).

The product of its (nonzero) digits is 5314410, while the sum is 59.

The square root of 309599996 is about 17595.4538446725. The cubic root of 309599996 is about 676.4987245568.

The spelling of 309599996 in words is "three hundred nine million, five hundred ninety-nine thousand, nine hundred ninety-six".