972122256 has 80 divisors (see below), whose sum is σ = 3188982400. Its totient is φ = 277748352.

The previous prime is 972122233. The next prime is 972122287. The reversal of 972122256 is 652221279.

It is a happy number.

It is a super-2 number, since 2×972122256² = 1890043361221059072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 972122256.

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, 157711 + ... + 163758.

It is an arithmetic number, because the mean of its divisors is an integer number (39862280).

Almost surely, 2^972122256 is an apocalyptic number.

It is an amenable number.

972122256 is an abundant number, since it is smaller than the sum of its proper divisors (2216860144).

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

972122256 is a wasteful number, since it uses less digits than its factorization.

972122256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321493 (or 321481 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 972122256 is about 31178.8751561053. The cubic root of 972122256 is about 990.6197038345.

The spelling of 972122256 in words is "nine hundred seventy-two million, one hundred twenty-two thousand, two hundred fifty-six".