312052140 has 36 divisors (see below), whose sum is σ = 946558704. Its totient is φ = 83213856.

The previous prime is 312052127. The next prime is 312052177. The reversal of 312052140 is 41250213.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 866632 + ... + 866991.

Almost surely, 2^312052140 is an apocalyptic number.

312052140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312052140 is an abundant number, since it is smaller than the sum of its proper divisors (634506564).

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

312052140 is a wasteful number, since it uses less digits than its factorization.

312052140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733638 (or 1733633 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 312052140 is about 17664.9975941125. The cubic root of 312052140 is about 678.2800680720.

The spelling of 312052140 in words is "three hundred twelve million, fifty-two thousand, one hundred forty".