22402252 has 24 divisors (see below), whose sum is σ = 40198032. Its totient is φ = 10920000.

The previous prime is 22402223. The next prime is 22402271. The reversal of 22402252 is 25220422.

It is an unprimeable number.

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, 53002 + ... + 53422.

It is an arithmetic number, because the mean of its divisors is an integer number (1674918).

Almost surely, 2^22402252 is an apocalyptic number.

It is an amenable number.

22402252 is a deficient number, since it is larger than the sum of its proper divisors (17795780).

22402252 is a wasteful number, since it uses less digits than its factorization.

22402252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22402252 is about 4733.1017314231. The cubic root of 22402252 is about 281.9013957022.

Adding to 22402252 its reverse (25220422), we get a palindrome (47622674).

The spelling of 22402252 in words is "twenty-two million, four hundred two thousand, two hundred fifty-two".