309633068 has 6 divisors (see below), whose sum is σ = 541857876. Its totient is φ = 154816532.

The previous prime is 309632989. The next prime is 309633097. The reversal of 309633068 is 860336903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38704130 + ... + 38704137.

It is an arithmetic number, because the mean of its divisors is an integer number (90309646).

Almost surely, 2^309633068 is an apocalyptic number.

It is an amenable number.

309633068 is a deficient number, since it is larger than the sum of its proper divisors (232224808).

309633068 is a wasteful number, since it uses less digits than its factorization.

309633068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77408271 (or 77408269 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 309633068 is about 17596.3936077822. The cubic root of 309633068 is about 676.5228119486.

The spelling of 309633068 in words is "three hundred nine million, six hundred thirty-three thousand, sixty-eight".