22518248 has 16 divisors (see below), whose sum is σ = 42322500. Its totient is φ = 11232256.

The previous prime is 22518233. The next prime is 22518271. The reversal of 22518248 is 84281522.

It can be written as a sum of positive squares in 2 ways, for example, as 22486564 + 31684 = 4742^2 + 178^2 .

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, 458 + ... + 6726.

Almost surely, 2^22518248 is an apocalyptic number.

It is an amenable number.

22518248 is a deficient number, since it is larger than the sum of its proper divisors (19804252).

22518248 is a wasteful number, since it uses less digits than its factorization.

22518248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724 (or 6720 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 22518248 is about 4745.3396085001. The cubic root of 22518248 is about 282.3871081543.

The spelling of 22518248 in words is "twenty-two million, five hundred eighteen thousand, two hundred forty-eight".