22801628 has 12 divisors (see below), whose sum is σ = 39962832. Its totient is φ = 11383680.

The previous prime is 22801609. The next prime is 22801661. The reversal of 22801628 is 82610822.

It is a self number, because there is not a number n which added to its sum of digits gives 22801628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013 + ... + 6828.

It is an arithmetic number, because the mean of its divisors is an integer number (3330236).

Almost surely, 2^22801628 is an apocalyptic number.

It is an amenable number.

22801628 is a deficient number, since it is larger than the sum of its proper divisors (17161204).

22801628 is a wasteful number, since it uses less digits than its factorization.

22801628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572 (or 8570 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 22801628 is about 4775.1050250230. The cubic root of 22801628 is about 283.5667367023.

The spelling of 22801628 in words is "twenty-two million, eight hundred one thousand, six hundred twenty-eight".