974061816 has 128 divisors (see below), whose sum is σ = 3006097920. Its totient is φ = 256126464.

The previous prime is 974061811. The next prime is 974061827. The reversal of 974061816 is 618160479.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974061811) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1425811 + ... + 1426493.

It is an arithmetic number, because the mean of its divisors is an integer number (23485140).

Almost surely, 2^974061816 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 974061816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503048960).

974061816 is an abundant number, since it is smaller than the sum of its proper divisors (2032036104).

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

974061816 is a wasteful number, since it uses less digits than its factorization.

974061816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 974061816 is about 31209.9634091423. The cubic root of 974061816 is about 991.2780880829.

The spelling of 974061816 in words is "nine hundred seventy-four million, sixty-one thousand, eight hundred sixteen".