422764818 has 32 divisors (see below), whose sum is σ = 967668864. Its totient is φ = 120621312.

The previous prime is 422764807. The next prime is 422764819. The reversal of 422764818 is 818467224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 422764818.

It is not an unprimeable number, because it can be changed into a prime (422764819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25146 + ... + 38442.

It is an arithmetic number, because the mean of its divisors is an integer number (30239652).

Almost surely, 2^422764818 is an apocalyptic number.

422764818 is an abundant number, since it is smaller than the sum of its proper divisors (544904046).

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

422764818 is a wasteful number, since it uses less digits than its factorization.

422764818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14066.

The product of its digits is 172032, while the sum is 42.

The square root of 422764818 is about 20561.2455362023. The cubic root of 422764818 is about 750.5269292629.

The spelling of 422764818 in words is "four hundred twenty-two million, seven hundred sixty-four thousand, eight hundred eighteen".