22470656 has 56 divisors (see below), whose sum is σ = 48624744. Its totient is φ = 10321920.

The previous prime is 22470649. The next prime is 22470659. The reversal of 22470656 is 65607422.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22470659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106391 + ... + 106601.

It is an arithmetic number, because the mean of its divisors is an integer number (868299).

Almost surely, 2^22470656 is an apocalyptic number.

22470656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22470656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24312372).

22470656 is an abundant number, since it is smaller than the sum of its proper divisors (26154088).

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

22470656 is an equidigital number, since it uses as much as digits as its factorization.

22470656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 22470656 is about 4740.3223519081. The cubic root of 22470656 is about 282.1880274450.

The spelling of 22470656 in words is "twenty-two million, four hundred seventy thousand, six hundred fifty-six".