422491572 has 48 divisors (see below), whose sum is σ = 1097017600. Its totient is φ = 140616000.

The previous prime is 422491561. The next prime is 422491607. The reversal of 422491572 is 275194224.

422491572 is a `hidden beast` number, since 42 + 2 + 49 + 1 + 572 = 666.

It is a super-2 number, since 2×422491572² = 356998256822062368, which contains 22 as substring.

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

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, 78504 + ... + 83712.

Almost surely, 2^422491572 is an apocalyptic number.

It is an amenable number.

422491572 is an abundant number, since it is smaller than the sum of its proper divisors (674526028).

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

422491572 is a wasteful number, since it uses less digits than its factorization.

422491572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5973 (or 5965 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 422491572 is about 20554.5997771788. The cubic root of 422491572 is about 750.3651981449.

The spelling of 422491572 in words is "four hundred twenty-two million, four hundred ninety-one thousand, five hundred seventy-two".