422564320 has 24 divisors (see below), whose sum is σ = 998308584. Its totient is φ = 169025664.

The previous prime is 422564287. The next prime is 422564321. The reversal of 422564320 is 23465224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422564321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320354 + ... + 1320673.

It is an arithmetic number, because the mean of its divisors is an integer number (41596191).

Almost surely, 2^422564320 is an apocalyptic number.

422564320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422564320 is an abundant number, since it is smaller than the sum of its proper divisors (575744264).

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

422564320 is a wasteful number, since it uses less digits than its factorization.

422564320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641042 (or 2641034 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 422564320 is about 20556.3693292371. The cubic root of 422564320 is about 750.4082636467.

The spelling of 422564320 in words is "four hundred twenty-two million, five hundred sixty-four thousand, three hundred twenty".