312634140 has 96 divisors (see below), whose sum is σ = 1077404160. Its totient is φ = 65961216.

The previous prime is 312634129. The next prime is 312634141. The reversal of 312634140 is 41436213.

It is a self number, because there is not a number n which added to its sum of digits gives 312634140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312634141) 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 31 ways as a sum of consecutive naturals, for example, 23170 + ... + 34089.

It is an arithmetic number, because the mean of its divisors is an integer number (11222960).

Almost surely, 2^312634140 is an apocalyptic number.

312634140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312634140 is an abundant number, since it is smaller than the sum of its proper divisors (764770020).

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

312634140 is a wasteful number, since it uses less digits than its factorization.

312634140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57291 (or 57289 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 312634140 is about 17681.4631747489. The cubic root of 312634140 is about 678.7014867870.

The spelling of 312634140 in words is "three hundred twelve million, six hundred thirty-four thousand, one hundred forty".