22144252 has 12 divisors (see below), whose sum is σ = 41733496. Its totient is φ = 10220400.

The previous prime is 22144249. The next prime is 22144259. The reversal of 22144252 is 25244122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144259) 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, 212874 + ... + 212977.

Almost surely, 2^22144252 is an apocalyptic number.

It is an amenable number.

22144252 is a deficient number, since it is larger than the sum of its proper divisors (19589244).

22144252 is a wasteful number, since it uses less digits than its factorization.

22144252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425868 (or 425866 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 22144252 is about 4705.7679500800. The cubic root of 22144252 is about 280.8150232896.

Adding to 22144252 its reverse (25244122), we get a palindrome (47388374).

The spelling of 22144252 in words is "twenty-two million, one hundred forty-four thousand, two hundred fifty-two".