22402456 has 16 divisors (see below), whose sum is σ = 42899040. Its totient is φ = 10962720.

The previous prime is 22402453. The next prime is 22402469. The reversal of 22402456 is 65420422.

It is a self number, because there is not a number n which added to its sum of digits gives 22402456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402453) 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 3 ways as a sum of consecutive naturals, for example, 29415 + ... + 30166.

It is an arithmetic number, because the mean of its divisors is an integer number (2681190).

Almost surely, 2^22402456 is an apocalyptic number.

It is an amenable number.

22402456 is a deficient number, since it is larger than the sum of its proper divisors (20496584).

22402456 is a wasteful number, since it uses less digits than its factorization.

22402456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59634 (or 59630 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 22402456 is about 4733.1232817242. The cubic root of 22402456 is about 281.9022513857.

Adding to 22402456 its reverse (65420422), we get a palindrome (87822878).

The spelling of 22402456 in words is "twenty-two million, four hundred two thousand, four hundred fifty-six".