422545636 has 12 divisors (see below), whose sum is σ = 778373680. Its totient is φ = 200153160.

The previous prime is 422545621. The next prime is 422545667. The reversal of 422545636 is 636545224.

It is a junction number, because it is equal to n+sod(n) for n = 422545595 and 422545604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2779830 + ... + 2779981.

Almost surely, 2^422545636 is an apocalyptic number.

It is an amenable number.

422545636 is a deficient number, since it is larger than the sum of its proper divisors (355828044).

422545636 is a wasteful number, since it uses less digits than its factorization.

422545636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559834 (or 5559832 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 422545636 is about 20555.9148665293. The cubic root of 422545636 is about 750.3972035279.

The spelling of 422545636 in words is "four hundred twenty-two million, five hundred forty-five thousand, six hundred thirty-six".