22275644 has 12 divisors (see below), whose sum is σ = 41275584. Its totient is φ = 10482624.

The previous prime is 22275637. The next prime is 22275647. The reversal of 22275644 is 44657222.

It is a super-2 number, since 2×22275644² = 992408631229472, 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 22275644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22275647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163724 + ... + 163859.

It is an arithmetic number, because the mean of its divisors is an integer number (3439632).

Almost surely, 2^22275644 is an apocalyptic number.

It is an amenable number.

22275644 is a deficient number, since it is larger than the sum of its proper divisors (18999940).

22275644 is a wasteful number, since it uses less digits than its factorization.

22275644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327604 (or 327602 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 22275644 is about 4719.7080418178. The cubic root of 22275644 is about 281.3693298405.

The spelling of 22275644 in words is "twenty-two million, two hundred seventy-five thousand, six hundred forty-four".