312397696 has 128 divisors (see below), whose sum is σ = 725709600. Its totient is φ = 132710400.

The previous prime is 312397669. The next prime is 312397703. The reversal of 312397696 is 696793213.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×312397696² = 195184640932216832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1296136 + ... + 1296376.

Almost surely, 2^312397696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312397696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362854800).

312397696 is an abundant number, since it is smaller than the sum of its proper divisors (413311904).

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

312397696 is a wasteful number, since it uses less digits than its factorization.

312397696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 316 counting only the distinct ones).

The product of its digits is 367416, while the sum is 46.

The square root of 312397696 is about 17674.7756987182. The cubic root of 312397696 is about 678.5303438584.

The spelling of 312397696 in words is "three hundred twelve million, three hundred ninety-seven thousand, six hundred ninety-six".