22226664 has 16 divisors (see below), whose sum is σ = 55566720. Its totient is φ = 7408880.

The previous prime is 22226641. The next prime is 22226681. The reversal of 22226664 is 46662222.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463032 + ... + 463079.

It is an arithmetic number, because the mean of its divisors is an integer number (3472920).

Almost surely, 2^22226664 is an apocalyptic number.

22226664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22226664 is an abundant number, since it is smaller than the sum of its proper divisors (33340056).

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

22226664 is a wasteful number, since it uses less digits than its factorization.

22226664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926120 (or 926116 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 22226664 is about 4714.5163060488. The cubic root of 22226664 is about 281.1629522217.

Adding to 22226664 its reverse (46662222), we get a palindrome (68888886).

The spelling of 22226664 in words is "twenty-two million, two hundred twenty-six thousand, six hundred sixty-four".