312643950 has 48 divisors (see below), whose sum is σ = 788520960. Its totient is φ = 81956320.

The previous prime is 312643949. The next prime is 312644023. The reversal of 312643950 is 59346213.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 8814 + ... + 26513.

It is an arithmetic number, because the mean of its divisors is an integer number (16427520).

Almost surely, 2^312643950 is an apocalyptic number.

312643950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312643950 is an abundant number, since it is smaller than the sum of its proper divisors (475877010).

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

312643950 is a wasteful number, since it uses less digits than its factorization.

312643950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35401 (or 35396 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 312643950 is about 17681.7405817414. The cubic root of 312643950 is about 678.7085855979.

The spelling of 312643950 in words is "three hundred twelve million, six hundred forty-three thousand, nine hundred fifty".