22140024 has 32 divisors (see below), whose sum is σ = 56112720. Its totient is φ = 7278336.

The previous prime is 22139993. The next prime is 22140029. The reversal of 22140024 is 42004122.

It is a junction number, because it is equal to n+sod(n) for n = 22139985 and 22140012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22140029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4567 + ... + 8070.

Almost surely, 2^22140024 is an apocalyptic number.

22140024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22140024 is an abundant number, since it is smaller than the sum of its proper divisors (33972696).

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

22140024 is a wasteful number, since it uses less digits than its factorization.

22140024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12719 (or 12715 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22140024 is about 4705.3186927136. The cubic root of 22140024 is about 280.7971501565.

Adding to 22140024 its reverse (42004122), we get a palindrome (64144146).

The spelling of 22140024 in words is "twenty-two million, one hundred forty thousand, twenty-four".