22690560 has 144 divisors (see below), whose sum is σ = 76527360. Its totient is φ = 5713920.

The previous prime is 22690537. The next prime is 22690567. The reversal of 22690560 is 6509622.

It is a super-2 number, since 2×22690560² = 1029723026227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (22690567) 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, 72805 + ... + 73115.

It is an arithmetic number, because the mean of its divisors is an integer number (531440).

Almost surely, 2^22690560 is an apocalyptic number.

22690560 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 22690560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38263680).

22690560 is an abundant number, since it is smaller than the sum of its proper divisors (53836800).

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

22690560 is a wasteful number, since it uses less digits than its factorization.

22690560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 22690560 is about 4763.4609266793. The cubic root of 22690560 is about 283.1055639675.

The spelling of 22690560 in words is "twenty-two million, six hundred ninety thousand, five hundred sixty".