22540024 has 16 divisors (see below), whose sum is σ = 45513720. Its totient is φ = 10403040.

The previous prime is 22540009. The next prime is 22540027. The reversal of 22540024 is 42004522.

It is a junction number, because it is equal to n+sod(n) for n = 22539983 and 22540010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108262 + ... + 108469.

Almost surely, 2^22540024 is an apocalyptic number.

It is an amenable number.

22540024 is an abundant number, since it is smaller than the sum of its proper divisors (22973696).

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

22540024 is a wasteful number, since it uses less digits than its factorization.

22540024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216750 (or 216746 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22540024 is about 4747.6335157634. The cubic root of 22540024 is about 282.4781051765.

Adding to 22540024 its reverse (42004522), we get a palindrome (64544546).

The spelling of 22540024 in words is "twenty-two million, five hundred forty thousand, twenty-four".