22928775 has 12 divisors (see below), whose sum is σ = 37909032. Its totient is φ = 12228640.

The previous prime is 22928771. The next prime is 22928777. The reversal of 22928775 is 57782922.

It is a happy number.

It is not a de Polignac number, because 22928775 - 2² = 22928771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22928771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152784 + ... + 152933.

It is an arithmetic number, because the mean of its divisors is an integer number (3159086).

Almost surely, 2^22928775 is an apocalyptic number.

22928775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22928775 is a deficient number, since it is larger than the sum of its proper divisors (14980257).

22928775 is a wasteful number, since it uses less digits than its factorization.

22928775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305730 (or 305725 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 22928775 is about 4788.4000459444. The cubic root of 22928775 is about 284.0928373009.

The spelling of 22928775 in words is "twenty-two million, nine hundred twenty-eight thousand, seven hundred seventy-five".