22520324 has 12 divisors (see below), whose sum is σ = 39588864. Its totient is φ = 11209224.

The previous prime is 22520321. The next prime is 22520387. The reversal of 22520324 is 42302522.

It is a junction number, because it is equal to n+sod(n) for n = 22520296 and 22520305.

It is not an unprimeable number, because it can be changed into a prime (22520321) 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, 11732 + ... + 13515.

It is an arithmetic number, because the mean of its divisors is an integer number (3299072).

Almost surely, 2^22520324 is an apocalyptic number.

It is an amenable number.

22520324 is a deficient number, since it is larger than the sum of its proper divisors (17068540).

22520324 is a wasteful number, since it uses less digits than its factorization.

22520324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25474 (or 25472 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22520324 is about 4745.5583443890. The cubic root of 22520324 is about 282.3957858220.

Adding to 22520324 its reverse (42302522), we get a palindrome (64822846).

The spelling of 22520324 in words is "twenty-two million, five hundred twenty thousand, three hundred twenty-four".