426633222 has 16 divisors (see below), whose sum is σ = 880791552. Its totient is φ = 137623560.

The previous prime is 426633211. The next prime is 426633227. The reversal of 426633222 is 222336624.

It is a super-2 number, since 2×426633222² = 364031812228202568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426633222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426633227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146678 + ... + 1147049.

It is an arithmetic number, because the mean of its divisors is an integer number (55049472).

Almost surely, 2^426633222 is an apocalyptic number.

426633222 is an abundant number, since it is smaller than the sum of its proper divisors (454158330).

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

426633222 is a wasteful number, since it uses less digits than its factorization.

426633222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293763.

The product of its digits is 20736, while the sum is 30.

The square root of 426633222 is about 20655.1015974262. The cubic root of 426633222 is about 752.8091521931.

Adding to 426633222 its reverse (222336624), we get a palindrome (648969846).

The spelling of 426633222 in words is "four hundred twenty-six million, six hundred thirty-three thousand, two hundred twenty-two".