22523622 has 64 divisors (see below), whose sum is σ = 51508224. Its totient is φ = 6506240.

The previous prime is 22523609. The next prime is 22523653. The reversal of 22523622 is 22632522.

It is a junction number, because it is equal to n+sod(n) for n = 22523592 and 22523601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164338 + ... + 164474.

It is an arithmetic number, because the mean of its divisors is an integer number (804816).

Almost surely, 2^22523622 is an apocalyptic number.

22523622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22523622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25754112).

22523622 is an abundant number, since it is smaller than the sum of its proper divisors (28984602).

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

22523622 is a wasteful number, since it uses less digits than its factorization.

22523622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253.

The product of its digits is 2880, while the sum is 24.

The square root of 22523622 is about 4745.9058144889. The cubic root of 22523622 is about 282.4095703461.

Subtracting 22523622 from its reverse (22632522), we obtain a square (108900 = 330²).

The spelling of 22523622 in words is "twenty-two million, five hundred twenty-three thousand, six hundred twenty-two".