22534320 has 40 divisors (see below), whose sum is σ = 69857136. Its totient is φ = 6009088.

The previous prime is 22534301. The next prime is 22534321. The reversal of 22534320 is 2343522.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (22534321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46707 + ... + 47186.

Almost surely, 2^22534320 is an apocalyptic number.

22534320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22534320 is an abundant number, since it is smaller than the sum of its proper divisors (47322816).

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

22534320 is a wasteful number, since it uses less digits than its factorization.

22534320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93909 (or 93903 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 22534320 is about 4747.0327574180. The cubic root of 22534320 is about 282.4542751066.

Adding to 22534320 its reverse (2343522), we get a palindrome (24877842).

The spelling of 22534320 in words is "twenty-two million, five hundred thirty-four thousand, three hundred twenty".