311698368 has 70 divisors (see below), whose sum is σ = 923986976. Its totient is φ = 103897728.

The previous prime is 311698367. The next prime is 311698391. The reversal of 311698368 is 863896113.

It is a happy number.

It is a super-2 number, since 2×311698368² = 194311745227726848, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311698367) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24880 + ... + 35247.

Almost surely, 2^311698368 is an apocalyptic number.

It is an amenable number.

311698368 is an abundant number, since it is smaller than the sum of its proper divisors (612288608).

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

311698368 is an equidigital number, since it uses as much as digits as its factorization.

311698368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60151 (or 60132 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 311698368 is about 17654.9813933632. The cubic root of 311698368 is about 678.0236502049.

The spelling of 311698368 in words is "three hundred eleven million, six hundred ninety-eight thousand, three hundred sixty-eight".