22648040 has 16 divisors (see below), whose sum is σ = 50958180. Its totient is φ = 9059200.

The previous prime is 22648027. The next prime is 22648051. The reversal of 22648040 is 4084622.

It can be written as a sum of positive squares in 2 ways, for example, as 22600516 + 47524 = 4754^2 + 218^2 .

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, 283061 + ... + 283140.

Almost surely, 2^22648040 is an apocalyptic number.

22648040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22648040 is an abundant number, since it is smaller than the sum of its proper divisors (28310140).

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

22648040 is a wasteful number, since it uses less digits than its factorization.

22648040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566212 (or 566208 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 22648040 is about 4758.9956923704. The cubic root of 22648040 is about 282.9286155572.

The spelling of 22648040 in words is "twenty-two million, six hundred forty-eight thousand, forty".