22097760 has 96 divisors (see below), whose sum is σ = 73301760. Its totient is φ = 5580288.

The previous prime is 22097759. The next prime is 22097771. The reversal of 22097760 is 6779022.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7909 + ... + 10331.

It is an arithmetic number, because the mean of its divisors is an integer number (763560).

Almost surely, 2^22097760 is an apocalyptic number.

22097760 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 22097760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36650880).

22097760 is an abundant number, since it is smaller than the sum of its proper divisors (51204000).

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

22097760 is a wasteful number, since it uses less digits than its factorization.

22097760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 22097760 is about 4700.8254594273. The cubic root of 22097760 is about 280.6183612763.

The spelling of 22097760 in words is "twenty-two million, ninety-seven thousand, seven hundred sixty".