22726940 has 24 divisors (see below), whose sum is σ = 47816160. Its totient is φ = 9073728.

The previous prime is 22726939. The next prime is 22726961. The reversal of 22726940 is 4962722.

It is a junction number, because it is equal to n+sod(n) for n = 22726897 and 22726906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20726 + ... + 21794.

It is an arithmetic number, because the mean of its divisors is an integer number (1992340).

Almost surely, 2^22726940 is an apocalyptic number.

22726940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22726940 is an abundant number, since it is smaller than the sum of its proper divisors (25089220).

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

22726940 is a wasteful number, since it uses less digits than its factorization.

22726940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 22726940 is about 4767.2780493695. The cubic root of 22726940 is about 283.2567851647.

The spelling of 22726940 in words is "twenty-two million, seven hundred twenty-six thousand, nine hundred forty".