974645812 has 48 divisors (see below), whose sum is σ = 2056803840. Its totient is φ = 394772832.

The previous prime is 974645753. The next prime is 974645821. The reversal of 974645812 is 218546479.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246483 + ... + 250405.

It is an arithmetic number, because the mean of its divisors is an integer number (42850080).

Almost surely, 2^974645812 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 974645812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028401920).

974645812 is an abundant number, since it is smaller than the sum of its proper divisors (1082158028).

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

974645812 is a wasteful number, since it uses less digits than its factorization.

974645812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420 (or 4418 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 974645812 is about 31219.3179297691. The cubic root of 974645812 is about 991.4761544938.

The spelling of 974645812 in words is "nine hundred seventy-four million, six hundred forty-five thousand, eight hundred twelve".