422515656 has 32 divisors (see below), whose sum is σ = 1173655200. Its totient is φ = 140838480.

The previous prime is 422515649. The next prime is 422515693. The reversal of 422515656 is 656515224.

422515656 is a `hidden beast` number, since 42 + 2 + 51 + 565 + 6 = 666.

It is a super-2 number, since 2×422515656² = 357038959130220672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 422515656.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977830 + ... + 978261.

It is an arithmetic number, because the mean of its divisors is an integer number (36676725).

Almost surely, 2^422515656 is an apocalyptic number.

It is an amenable number.

422515656 is an abundant number, since it is smaller than the sum of its proper divisors (751139544).

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

422515656 is a wasteful number, since it uses less digits than its factorization.

422515656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956106 (or 1956096 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 422515656 is about 20555.1856230976. The cubic root of 422515656 is about 750.3794559852.

It can be divided in two parts, 4225 and 15656, that added together give a square (19881 = 141²).

The spelling of 422515656 in words is "four hundred twenty-two million, five hundred fifteen thousand, six hundred fifty-six".