22142524 has 12 divisors (see below), whose sum is σ = 40789000. Its totient is φ = 10488528.

The previous prime is 22142521. The next prime is 22142567. The reversal of 22142524 is 42524122.

It is a junction number, because it is equal to n+sod(n) for n = 22142495 and 22142504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145599 + ... + 145750.

Almost surely, 2^22142524 is an apocalyptic number.

It is an amenable number.

22142524 is a deficient number, since it is larger than the sum of its proper divisors (18646476).

22142524 is a wasteful number, since it uses less digits than its factorization.

22142524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291372 (or 291370 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 22142524 is about 4705.5843420345. The cubic root of 22142524 is about 280.8077187457.

Adding to 22142524 its reverse (42524122), we get a palindrome (64666646).

The spelling of 22142524 in words is "twenty-two million, one hundred forty-two thousand, five hundred twenty-four".