974671640 has 32 divisors (see below), whose sum is σ = 2194182000. Its totient is φ = 389660544.

The previous prime is 974671637. The next prime is 974671657. The reversal of 974671640 is 46176479.

It is a junction number, because it is equal to n+sod(n) for n = 974671591 and 974671600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85391 + ... + 96129.

Almost surely, 2^974671640 is an apocalyptic number.

It is an amenable number.

974671640 is an abundant number, since it is smaller than the sum of its proper divisors (1219510360).

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

974671640 is a wasteful number, since it uses less digits than its factorization.

974671640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13019 (or 13015 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 974671640 is about 31219.7315811651. The cubic root of 974671640 is about 991.4849124171.

The spelling of 974671640 in words is "nine hundred seventy-four million, six hundred seventy-one thousand, six hundred forty".