915620928 has 112 divisors (see below), whose sum is σ = 2485095360. Its totient is φ = 297437184.

The previous prime is 915620917. The next prime is 915620933. The reversal of 915620928 is 829026519.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 915620928.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1401850 + ... + 1402502.

Almost surely, 2^915620928 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 915620928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242547680).

915620928 is an abundant number, since it is smaller than the sum of its proper divisors (1569474432).

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

915620928 is a wasteful number, since it uses less digits than its factorization.

915620928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 915620928 is about 30259.2288070929. The cubic root of 915620928 is about 971.0432421985.

The spelling of 915620928 in words is "nine hundred fifteen million, six hundred twenty thousand, nine hundred twenty-eight".