22518088 has 8 divisors (see below), whose sum is σ = 42221430. Its totient is φ = 11259040.

The previous prime is 22518077. The next prime is 22518107. The reversal of 22518088 is 88081522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16957924 + 5560164 = 4118^2 + 2358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1407373 + ... + 1407388.

Almost surely, 2^22518088 is an apocalyptic number.

It is an amenable number.

22518088 is a deficient number, since it is larger than the sum of its proper divisors (19703342).

22518088 is a wasteful number, since it uses less digits than its factorization.

22518088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814767 (or 2814763 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 22518088 is about 4745.3227498243. The cubic root of 22518088 is about 282.3864393331.

The spelling of 22518088 in words is "twenty-two million, five hundred eighteen thousand, eighty-eight".