22094720 has 128 divisors (see below), whose sum is σ = 58752000. Its totient is φ = 7907328.

The previous prime is 22094719. The next prime is 22094729. The reversal of 22094720 is 2749022.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 22094720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22094729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279641 + ... + 279719.

It is an arithmetic number, because the mean of its divisors is an integer number (459000).

Almost surely, 2^22094720 is an apocalyptic number.

22094720 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 22094720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29376000).

22094720 is an abundant number, since it is smaller than the sum of its proper divisors (36657280).

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

22094720 is a wasteful number, since it uses less digits than its factorization.

22094720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 22094720 is about 4700.5021008399. The cubic root of 22094720 is about 280.6054924163.

The spelling of 22094720 in words is "twenty-two million, ninety-four thousand, seven hundred twenty".