422623264 has 192 divisors, whose sum is σ = 1077753600. Its totient is φ = 158957568.

The previous prime is 422623241. The next prime is 422623273. The reversal of 422623264 is 462326224.

It is a happy number.

It is a super-2 number, since 2×422623264² = 357220846548027392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4748532 + ... + 4748620.

It is an arithmetic number, because the mean of its divisors is an integer number (5613300).

Almost surely, 2^422623264 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 422623264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538876800).

422623264 is an abundant number, since it is smaller than the sum of its proper divisors (655130336).

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

422623264 is a wasteful number, since it uses less digits than its factorization.

422623264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 187 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

The square root of 422623264 is about 20557.8029954565. The cubic root of 422623264 is about 750.4431538051.

Adding to 422623264 its reverse (462326224), we get a palindrome (884949488).

The spelling of 422623264 in words is "four hundred twenty-two million, six hundred twenty-three thousand, two hundred sixty-four".