312576990 has 32 divisors (see below), whose sum is σ = 818384256. Its totient is φ = 75776160.

The previous prime is 312576973. The next prime is 312576991. The reversal of 312576990 is 99675213.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312576991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473272 + ... + 473931.

It is an arithmetic number, because the mean of its divisors is an integer number (25574508).

Almost surely, 2^312576990 is an apocalyptic number.

312576990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

312576990 is an abundant number, since it is smaller than the sum of its proper divisors (505807266).

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

312576990 is a wasteful number, since it uses less digits than its factorization.

312576990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947224.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 312576990 is about 17679.8470016004. The cubic root of 312576990 is about 678.6601283760.

The spelling of 312576990 in words is "three hundred twelve million, five hundred seventy-six thousand, nine hundred ninety".