915220752 has 80 divisors (see below), whose sum is σ = 2437498752. Its totient is φ = 295695360.

The previous prime is 915220751. The next prime is 915220771. The reversal of 915220752 is 257022519.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (915220751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551508 + ... + 553164.

Almost surely, 2^915220752 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 915220752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1218749376).

915220752 is an abundant number, since it is smaller than the sum of its proper divisors (1522278000).

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

915220752 is a wasteful number, since it uses less digits than its factorization.

915220752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 915220752 is about 30252.6156224549. The cubic root of 915220752 is about 970.9017553984.

The spelling of 915220752 in words is "nine hundred fifteen million, two hundred twenty thousand, seven hundred fifty-two".