422513856 has 84 divisors (see below), whose sum is σ = 1240667064. Its totient is φ = 137395200.

The previous prime is 422513851. The next prime is 422513857. The reversal of 422513856 is 658315224.

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 422513856.

It is not an unprimeable number, because it can be changed into a prime (422513851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14671 + ... + 32561.

It is an arithmetic number, because the mean of its divisors is an integer number (14769846).

Almost surely, 2^422513856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422513856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620333532).

422513856 is an abundant number, since it is smaller than the sum of its proper divisors (818153208).

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

422513856 is a wasteful number, since it uses less digits than its factorization.

422513856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17950 (or 17937 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 422513856 is about 20555.1418384792. The cubic root of 422513856 is about 750.3783903955.

It can be divided in two parts, 4225 and 13856, that added together give a palindrome (18081).

The spelling of 422513856 in words is "four hundred twenty-two million, five hundred thirteen thousand, eight hundred fifty-six".