422809836 has 48 divisors (see below), whose sum is σ = 1004306688. Its totient is φ = 138424000.

The previous prime is 422809823. The next prime is 422809843. The reversal of 422809836 is 638908224.

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, 157441 + ... + 160103.

It is an arithmetic number, because the mean of its divisors is an integer number (20923056).

Almost surely, 2^422809836 is an apocalyptic number.

It is an amenable number.

422809836 is an abundant number, since it is smaller than the sum of its proper divisors (581496852).

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

422809836 is a wasteful number, since it uses less digits than its factorization.

422809836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 422809836 is about 20562.3402364614. The cubic root of 422809836 is about 750.5535682047.

The spelling of 422809836 in words is "four hundred twenty-two million, eight hundred nine thousand, eight hundred thirty-six".