312447488 has 40 divisors (see below), whose sum is σ = 661025772. Its totient is φ = 147030016.

The previous prime is 312447463. The next prime is 312447491. The reversal of 312447488 is 884744213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 294740224 + 17707264 = 17168^2 + 4208^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9245 + ... + 26652.

Almost surely, 2^312447488 is an apocalyptic number.

It is an amenable number.

312447488 is an abundant number, since it is smaller than the sum of its proper divisors (348578284).

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

312447488 is an equidigital number, since it uses as much as digits as its factorization.

312447488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35932 (or 35916 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 312447488 is about 17676.1842036114. The cubic root of 312447488 is about 678.5663914867.

The spelling of 312447488 in words is "three hundred twelve million, four hundred forty-seven thousand, four hundred eighty-eight".