312500232 has 48 divisors (see below), whose sum is σ = 923298480. Its totient is φ = 94696800.

The previous prime is 312500213. The next prime is 312500269. The reversal of 312500232 is 232005213.

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 (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196494 + ... + 198077.

It is an arithmetic number, because the mean of its divisors is an integer number (19235385).

Almost surely, 2^312500232 is an apocalyptic number.

It is an amenable number.

312500232 is an abundant number, since it is smaller than the sum of its proper divisors (610798248).

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

312500232 is a wasteful number, since it uses less digits than its factorization.

312500232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394594 (or 394587 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 312500232 is about 17677.6760916134. The cubic root of 312500232 is about 678.6045720807.

Adding to 312500232 its reverse (232005213), we get a palindrome (544505445).

The spelling of 312500232 in words is "three hundred twelve million, five hundred thousand, two hundred thirty-two".