974278656 has 312 divisors, whose sum is σ = 3220045920. Its totient is φ = 281346048.

The previous prime is 974278631. The next prime is 974278663. The reversal of 974278656 is 656872479.

974278656 is a `hidden beast` number, since 97 + 427 + 86 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (312).

Its product of digits (5080320) is a multiple of the sum of its prime divisors (144).

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, 9105355 + ... + 9105461.

It is an arithmetic number, because the mean of its divisors is an integer number (10320660).

Almost surely, 2^974278656 is an apocalyptic number.

974278656 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 974278656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610022960).

974278656 is an abundant number, since it is smaller than the sum of its proper divisors (2245767264).

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

974278656 is a wasteful number, since it uses less digits than its factorization.

974278656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 144 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 974278656 is about 31213.4371064771. The cubic root of 974278656 is about 991.3516401542.

The spelling of 974278656 in words is "nine hundred seventy-four million, two hundred seventy-eight thousand, six hundred fifty-six".