22470720 has 112 divisors (see below), whose sum is σ = 72420480. Its totient is φ = 5902336.

The previous prime is 22470713. The next prime is 22470731. The reversal of 22470720 is 2707422.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85309 + ... + 85571.

Almost surely, 2^22470720 is an apocalyptic number.

22470720 is a gapful number since it is divisible by the number (20) 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 22470720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36210240).

22470720 is an abundant number, since it is smaller than the sum of its proper divisors (49949760).

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

22470720 is a wasteful number, since it uses less digits than its factorization.

22470720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 22470720 is about 4740.3291024991. The cubic root of 22470720 is about 282.1882953502.

The spelling of 22470720 in words is "twenty-two million, four hundred seventy thousand, seven hundred twenty".