22523260 has 24 divisors (see below), whose sum is σ = 47388096. Its totient is φ = 8992320.

The previous prime is 22523257. The next prime is 22523261. The reversal of 22523260 is 6232522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22523261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19869 + ... + 20971.

It is an arithmetic number, because the mean of its divisors is an integer number (1974504).

Almost surely, 2^22523260 is an apocalyptic number.

22523260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22523260 is an abundant number, since it is smaller than the sum of its proper divisors (24864836).

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

22523260 is a wasteful number, since it uses less digits than its factorization.

22523260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133 (or 2131 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 22523260 is about 4745.8676762000. The cubic root of 22523260 is about 282.4080573743.

Adding to 22523260 its reverse (6232522), we get a palindrome (28755782).

The spelling of 22523260 in words is "twenty-two million, five hundred twenty-three thousand, two hundred sixty".