974815920 has 120 divisors (see below), whose sum is σ = 3525618096. Its totient is φ = 239952384.

The previous prime is 974815883. The next prime is 974815927. The reversal of 974815920 is 29518479.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (974815927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42714 + ... + 61433.

Almost surely, 2^974815920 is an apocalyptic number.

974815920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

974815920 is an abundant number, since it is smaller than the sum of its proper divisors (2550802176).

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

974815920 is a wasteful number, since it uses less digits than its factorization.

974815920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104179 (or 104170 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 974815920 is about 31222.0422137950. The cubic root of 974815920 is about 991.5338329559.

The spelling of 974815920 in words is "nine hundred seventy-four million, eight hundred fifteen thousand, nine hundred twenty".