974465820 has 36 divisors (see below), whose sum is σ = 2955880200. Its totient is φ = 259857504.

The previous prime is 974465747. The next prime is 974465837. The reversal of 974465820 is 28564479.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2706670 + ... + 2707029.

Almost surely, 2^974465820 is an apocalyptic number.

974465820 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

974465820 is an abundant number, since it is smaller than the sum of its proper divisors (1981414380).

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

974465820 is a wasteful number, since it uses less digits than its factorization.

974465820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413714 (or 5413709 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 974465820 is about 31216.4350943537. The cubic root of 974465820 is about 991.4151173593.

The spelling of 974465820 in words is "nine hundred seventy-four million, four hundred sixty-five thousand, eight hundred twenty".