22500456 has 32 divisors (see below), whose sum is σ = 61365600. Its totient is φ = 6818240.

The previous prime is 22500449. The next prime is 22500493. The reversal of 22500456 is 65400522.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42351 + ... + 42878.

It is an arithmetic number, because the mean of its divisors is an integer number (1917675).

Almost surely, 2^22500456 is an apocalyptic number.

It is an amenable number.

22500456 is an abundant number, since it is smaller than the sum of its proper divisors (38865144).

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

22500456 is a wasteful number, since it uses less digits than its factorization.

22500456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85249 (or 85245 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 22500456 is about 4743.4645566295. The cubic root of 22500456 is about 282.3127158178.

Adding to 22500456 its reverse (65400522), we get a palindrome (87900978).

The spelling of 22500456 in words is "twenty-two million, five hundred thousand, four hundred fifty-six".