22755138 has 32 divisors (see below), whose sum is σ = 52171776. Its totient is φ = 6481488.

The previous prime is 22755137. The next prime is 22755151. The reversal of 22755138 is 83155722.

It is a junction number, because it is equal to n+sod(n) for n = 22755099 and 22755108.

It is not an unprimeable number, because it can be changed into a prime (22755137) 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 15 ways as a sum of consecutive naturals, for example, 17995 + ... + 19217.

It is an arithmetic number, because the mean of its divisors is an integer number (1630368).

Almost surely, 2^22755138 is an apocalyptic number.

22755138 is an abundant number, since it is smaller than the sum of its proper divisors (29416638).

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

22755138 is a wasteful number, since it uses less digits than its factorization.

22755138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its digits is 16800, while the sum is 33.

The square root of 22755138 is about 4770.2345854266. The cubic root of 22755138 is about 283.3738851608.

The spelling of 22755138 in words is "twenty-two million, seven hundred fifty-five thousand, one hundred thirty-eight".