22501260 has 48 divisors (see below), whose sum is σ = 70005600. Its totient is φ = 6000192.

The previous prime is 22501231. The next prime is 22501261. The reversal of 22501260 is 6210522.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22501261) 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, 20295 + ... + 21374.

It is an arithmetic number, because the mean of its divisors is an integer number (1458450).

Almost surely, 2^22501260 is an apocalyptic number.

22501260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22501260 is an abundant number, since it is smaller than the sum of its proper divisors (47504340).

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

22501260 is a wasteful number, since it uses less digits than its factorization.

22501260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41687 (or 41679 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 22501260 is about 4743.5493040549. The cubic root of 22501260 is about 282.3160783677.

Adding to 22501260 its reverse (6210522), we get a palindrome (28711782).

The spelling of 22501260 in words is "twenty-two million, five hundred one thousand, two hundred sixty".