22766320 has 40 divisors (see below), whose sum is σ = 55237536. Its totient is φ = 8709888.

The previous prime is 22766311. The next prime is 22766321. The reversal of 22766320 is 2366722.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22766321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4347 + ... + 8026.

Almost surely, 2^22766320 is an apocalyptic number.

22766320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22766320 is an abundant number, since it is smaller than the sum of its proper divisors (32471216).

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

22766320 is a wasteful number, since it uses less digits than its factorization.

22766320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12409 (or 12403 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 22766320 is about 4771.4065012321. The cubic root of 22766320 is about 283.4202947217.

The spelling of 22766320 in words is "twenty-two million, seven hundred sixty-six thousand, three hundred twenty".