312690912 has 48 divisors (see below), whose sum is σ = 821745792. Its totient is φ = 104112000.

The previous prime is 312690881. The next prime is 312690913. The reversal of 312690912 is 219096213.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312690913) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 137787 + ... + 140037.

It is an arithmetic number, because the mean of its divisors is an integer number (17119704).

Almost surely, 2^312690912 is an apocalyptic number.

312690912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312690912 is an abundant number, since it is smaller than the sum of its proper divisors (509054880).

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

312690912 is a wasteful number, since it uses less digits than its factorization.

312690912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711 (or 3703 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 312690912 is about 17683.0685119976. The cubic root of 312690912 is about 678.7425666561.

The spelling of 312690912 in words is "three hundred twelve million, six hundred ninety thousand, nine hundred twelve".