22390552 has 32 divisors (see below), whose sum is σ = 43898400. Its totient is φ = 10692864.

The previous prime is 22390519. The next prime is 22390553. The reversal of 22390552 is 25509322.

It is a self number, because there is not a number n which added to its sum of digits gives 22390552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22390553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23428 + ... + 24364.

It is an arithmetic number, because the mean of its divisors is an integer number (1371825).

Almost surely, 2^22390552 is an apocalyptic number.

It is an amenable number.

22390552 is a deficient number, since it is larger than the sum of its proper divisors (21507848).

22390552 is a wasteful number, since it uses less digits than its factorization.

22390552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 22390552 is about 4731.8655940337. The cubic root of 22390552 is about 281.8523110434.

Adding to 22390552 its reverse (25509322), we get a palindrome (47899874).

The spelling of 22390552 in words is "twenty-two million, three hundred ninety thousand, five hundred fifty-two".