22702144 has 28 divisors (see below), whose sum is σ = 45275500. Its totient is φ = 11294208.

The previous prime is 22702129. The next prime is 22702153. The reversal of 22702144 is 44120722.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15303744 + 7398400 = 3912^2 + 2720^2 .

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, 13882 + ... + 15430.

Almost surely, 2^22702144 is an apocalyptic number.

It is an amenable number.

22702144 is a deficient number, since it is larger than the sum of its proper divisors (22573356).

22702144 is a wasteful number, since it uses less digits than its factorization.

22702144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22702144 is about 4764.6766941735. The cubic root of 22702144 is about 283.1537328525.

Adding to 22702144 its reverse (44120722), we get a palindrome (66822866).

The spelling of 22702144 in words is "twenty-two million, seven hundred two thousand, one hundred forty-four".