22144364 has 24 divisors (see below), whose sum is σ = 42405888. Its totient is φ = 10034640.

The previous prime is 22144361. The next prime is 22144391. The reversal of 22144364 is 46344122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19829 + ... + 20915.

It is an arithmetic number, because the mean of its divisors is an integer number (1766912).

Almost surely, 2^22144364 is an apocalyptic number.

It is an amenable number.

22144364 is a deficient number, since it is larger than the sum of its proper divisors (20261524).

22144364 is a wasteful number, since it uses less digits than its factorization.

22144364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565 (or 1563 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 22144364 is about 4705.7798503542. The cubic root of 22144364 is about 280.8154967192.

Adding to 22144364 its reverse (46344122), we get a palindrome (68488486).

The spelling of 22144364 in words is "twenty-two million, one hundred forty-four thousand, three hundred sixty-four".