22653040 has 20 divisors (see below), whose sum is σ = 52668504. Its totient is φ = 9061184.

The previous prime is 22653023. The next prime is 22653041. The reversal of 22653040 is 4035622.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22653041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141502 + ... + 141661.

Almost surely, 2^22653040 is an apocalyptic number.

22653040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22653040 is an abundant number, since it is smaller than the sum of its proper divisors (30015464).

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

22653040 is a wasteful number, since it uses less digits than its factorization.

22653040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283176 (or 283170 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 22653040 is about 4759.5209843008. The cubic root of 22653040 is about 282.9494347096.

Adding to 22653040 its reverse (4035622), we get a palindrome (26688662).

The spelling of 22653040 in words is "twenty-two million, six hundred fifty-three thousand, forty".