22403252 has 6 divisors (see below), whose sum is σ = 39205698. Its totient is φ = 11201624.

The previous prime is 22403239. The next prime is 22403279. The reversal of 22403252 is 25230422.

It can be written as a sum of positive squares in only one way, i.e., 21473956 + 929296 = 4634^2 + 964^2 .

22403252 is a modest number, since divided by 3252 gives 224 as remainder.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2800403 + ... + 2800410.

It is an arithmetic number, because the mean of its divisors is an integer number (6534283).

Almost surely, 2^22403252 is an apocalyptic number.

It is an amenable number.

22403252 is a deficient number, since it is larger than the sum of its proper divisors (16802446).

22403252 is a wasteful number, since it uses less digits than its factorization.

22403252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600817 (or 5600815 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22403252 is about 4733.2073692159. The cubic root of 22403252 is about 281.9055901793.

Adding to 22403252 its reverse (25230422), we get a palindrome (47633674).

The spelling of 22403252 in words is "twenty-two million, four hundred three thousand, two hundred fifty-two".