312873988 has 48 divisors (see below), whose sum is σ = 663577600. Its totient is φ = 126087840.

The previous prime is 312873949. The next prime is 312873997. The reversal of 312873988 is 889378213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71833 + ... + 76063.

Almost surely, 2^312873988 is an apocalyptic number.

312873988 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312873988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331788800).

312873988 is an abundant number, since it is smaller than the sum of its proper divisors (350703612).

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

312873988 is a wasteful number, since it uses less digits than its factorization.

312873988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400 (or 4398 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 312873988 is about 17688.2443447619. The cubic root of 312873988 is about 678.8750054598.

The spelling of 312873988 in words is "three hundred twelve million, eight hundred seventy-three thousand, nine hundred eighty-eight".