311945336 has 8 divisors (see below), whose sum is σ = 584897520. Its totient is φ = 155972664.

The previous prime is 311945327. The next prime is 311945369. The reversal of 311945336 is 633549113.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 311945296 and 311945305.

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, 19496576 + ... + 19496591.

It is an arithmetic number, because the mean of its divisors is an integer number (73112190).

Almost surely, 2^311945336 is an apocalyptic number.

It is an amenable number.

311945336 is a deficient number, since it is larger than the sum of its proper divisors (272952184).

311945336 is a wasteful number, since it uses less digits than its factorization.

311945336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38993173 (or 38993169 counting only the distinct ones).

The product of its digits is 29160, while the sum is 35.

The square root of 311945336 is about 17661.9742950781. The cubic root of 311945336 is about 678.2026757802.

The spelling of 311945336 in words is "three hundred eleven million, nine hundred forty-five thousand, three hundred thirty-six".