974664990 has 48 divisors (see below), whose sum is σ = 2729065248. Its totient is φ = 239917248.

The previous prime is 974664967. The next prime is 974665007. The reversal of 974664990 is 99466479.

974664990 is a `hidden beast` number, since 97 + 4 + 66 + 499 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415354 + ... + 417693.

It is an arithmetic number, because the mean of its divisors is an integer number (56855526).

Almost surely, 2^974664990 is an apocalyptic number.

974664990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

974664990 is an abundant number, since it is smaller than the sum of its proper divisors (1754400258).

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

974664990 is a wasteful number, since it uses less digits than its factorization.

974664990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833073 (or 833070 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 974664990 is about 31219.6250778256. The cubic root of 974664990 is about 991.4826575074.

The spelling of 974664990 in words is "nine hundred seventy-four million, six hundred sixty-four thousand, nine hundred ninety".