22252404 has 24 divisors (see below), whose sum is σ = 52581760. Its totient is φ = 7323264.

The previous prime is 22252397. The next prime is 22252409. The reversal of 22252404 is 40425222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252409) 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, 10789 + ... + 12684.

Almost surely, 2^22252404 is an apocalyptic number.

It is an amenable number.

22252404 is an abundant number, since it is smaller than the sum of its proper divisors (30329356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22252404 is a wasteful number, since it uses less digits than its factorization.

22252404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23559 (or 23557 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 22252404 is about 4717.2453826359. The cubic root of 22252404 is about 281.2714456733.

Adding to 22252404 its reverse (40425222), we get a palindrome (62677626).

The spelling of 22252404 in words is "twenty-two million, two hundred fifty-two thousand, four hundred four".