316939440 has 80 divisors (see below), whose sum is σ = 984731616. Its totient is φ = 84326400.

The previous prime is 316939439. The next prime is 316939481. The reversal of 316939440 is 44939613.

It is a tau number, because it is divible by the number of its divisors (80).

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, 128620 + ... + 131060.

Almost surely, 2^316939440 is an apocalyptic number.

316939440 is a gapful number since it is divisible by the number (30) 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 316939440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492365808).

316939440 is an abundant number, since it is smaller than the sum of its proper divisors (667792176).

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

316939440 is a wasteful number, since it uses less digits than its factorization.

316939440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998 (or 2992 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 316939440 is about 17802.7930392958. The cubic root of 316939440 is about 681.8027711749.

The spelling of 316939440 in words is "three hundred sixteen million, nine hundred thirty-nine thousand, four hundred forty".