915881472 has 320 divisors, whose sum is σ = 3123014400. Its totient is φ = 262103040.

The previous prime is 915881429. The next prime is 915881513. The reversal of 915881472 is 274188519.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2889058 + ... + 2889374.

It is an arithmetic number, because the mean of its divisors is an integer number (9759420).

Almost surely, 2^915881472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 915881472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561507200).

915881472 is an abundant number, since it is smaller than the sum of its proper divisors (2207132928).

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

915881472 is a wasteful number, since it uses less digits than its factorization.

915881472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 352 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 915881472 is about 30263.5336998177. The cubic root of 915881472 is about 971.1353383521.

The spelling of 915881472 in words is "nine hundred fifteen million, eight hundred eighty-one thousand, four hundred seventy-two".