312490445392 has 40 divisors (see below), whose sum is σ = 632087043840. Its totient is φ = 149377937280.

The previous prime is 312490445363. The next prime is 312490445441. The reversal of 312490445392 is 293544094213.

It is a happy number.

It is a super-2 number, since 2×312490445392² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537417 + ... + 955927.

It is an arithmetic number, because the mean of its divisors is an integer number (15802176096).

Almost surely, 2^312490445392 is an apocalyptic number.

It is an amenable number.

312490445392 is an abundant number, since it is smaller than the sum of its proper divisors (319596598448).

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

312490445392 is a wasteful number, since it uses less digits than its factorization.

312490445392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420571 (or 420565 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 312490445392 in words is "three hundred twelve billion, four hundred ninety million, four hundred forty-five thousand, three hundred ninety-two".