312789312 has 84 divisors (see below), whose sum is σ = 978078816. Its totient is φ = 94782720.

The previous prime is 312789271. The next prime is 312789383. The reversal of 312789312 is 213987213.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18348 + ... + 31019.

Almost surely, 2^312789312 is an apocalyptic number.

312789312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312789312 is an abundant number, since it is smaller than the sum of its proper divisors (665289504).

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

312789312 is a wasteful number, since it uses less digits than its factorization.

312789312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49396 (or 49383 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 312789312 is about 17685.8506156758. The cubic root of 312789312 is about 678.8137565132.

The spelling of 312789312 in words is "three hundred twelve million, seven hundred eighty-nine thousand, three hundred twelve".