312140492 has 24 divisors (see below), whose sum is σ = 551292336. Its totient is φ = 154634688.

The previous prime is 312140449. The next prime is 312140501. The reversal of 312140492 is 294041213.

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, 403418 + ... + 404190.

It is an arithmetic number, because the mean of its divisors is an integer number (22970514).

Almost surely, 2^312140492 is an apocalyptic number.

It is an amenable number.

312140492 is a deficient number, since it is larger than the sum of its proper divisors (239151844).

312140492 is a wasteful number, since it uses less digits than its factorization.

312140492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 312140492 is about 17667.4981816894. The cubic root of 312140492 is about 678.3440763343.

The spelling of 312140492 in words is "three hundred twelve million, one hundred forty thousand, four hundred ninety-two".