22766840 has 32 divisors (see below), whose sum is σ = 52613280. Its totient is φ = 8860032.

The previous prime is 22766819. The next prime is 22766851. The reversal of 22766840 is 4866722.

It is a self number, because there is not a number n which added to its sum of digits gives 22766840.

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, 6212 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (1644165).

Almost surely, 2^22766840 is an apocalyptic number.

22766840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22766840 is an abundant number, since it is smaller than the sum of its proper divisors (29846440).

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

22766840 is a wasteful number, since it uses less digits than its factorization.

22766840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15431 (or 15427 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 22766840 is about 4771.4609921910. The cubic root of 22766840 is about 283.4224525500.

The spelling of 22766840 in words is "twenty-two million, seven hundred sixty-six thousand, eight hundred forty".