22104256 has 14 divisors (see below), whose sum is σ = 43863260. Its totient is φ = 11052096.

The previous prime is 22104253. The next prime is 22104259. The reversal of 22104256 is 65240122.

It is an interprime number because it is at equal distance from previous prime (22104253) and next prime (22104259).

It is not an unprimeable number, because it can be changed into a prime (22104253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172626 + ... + 172753.

It is an arithmetic number, because the mean of its divisors is an integer number (3133090).

Almost surely, 2^22104256 is an apocalyptic number.

22104256 is the 2974-th centered pentagonal number.

It is an amenable number.

22104256 is a deficient number, since it is larger than the sum of its proper divisors (21759004).

22104256 is an equidigital number, since it uses as much as digits as its factorization.

22104256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345391 (or 345381 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 22104256 is about 4701.5163511361. The cubic root of 22104256 is about 280.6458560432.

Adding to 22104256 its reverse (65240122), we get a palindrome (87344378).

The spelling of 22104256 in words is "twenty-two million, one hundred four thousand, two hundred fifty-six".