312621492 has 48 divisors (see below), whose sum is σ = 741529152. Its totient is φ = 102493440.

The previous prime is 312621461. The next prime is 312621499. The reversal of 312621492 is 294126213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312621499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279318 + ... + 280434.

It is an arithmetic number, because the mean of its divisors is an integer number (15448524).

Almost surely, 2^312621492 is an apocalyptic number.

It is an amenable number.

312621492 is an abundant number, since it is smaller than the sum of its proper divisors (428907660).

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

312621492 is a wasteful number, since it uses less digits than its factorization.

312621492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1486 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 312621492 is about 17681.1055084234. The cubic root of 312621492 is about 678.6923340948.

The spelling of 312621492 in words is "three hundred twelve million, six hundred twenty-one thousand, four hundred ninety-two".