22520766 has 16 divisors (see below), whose sum is σ = 45162000. Its totient is φ = 7486848.

The previous prime is 22520761. The next prime is 22520779. The reversal of 22520766 is 66702522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520761) 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, 2491 + ... + 7158.

It is an arithmetic number, because the mean of its divisors is an integer number (2822625).

Almost surely, 2^22520766 is an apocalyptic number.

22520766 is an abundant number, since it is smaller than the sum of its proper divisors (22641234).

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

22520766 is a wasteful number, since it uses less digits than its factorization.

22520766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10043.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 22520766 is about 4745.6049140231. The cubic root of 22520766 is about 282.3976333106.

The spelling of 22520766 in words is "twenty-two million, five hundred twenty thousand, seven hundred sixty-six".