22540004320 has 48 divisors (see below), whose sum is σ = 54383773248. Its totient is φ = 8824168960.

The previous prime is 22540004317. The next prime is 22540004381. The reversal of 22540004320 is 2340004522.

It is a junction number, because it is equal to n+sod(n) for n = 22540004291 and 22540004300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1491151 + ... + 1506190.

It is an arithmetic number, because the mean of its divisors is an integer number (1132995276).

Almost surely, 2^22540004320 is an apocalyptic number.

22540004320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22540004320 is an abundant number, since it is smaller than the sum of its proper divisors (31843768928).

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

22540004320 is a wasteful number, since it uses less digits than its factorization.

22540004320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997403 (or 2997395 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 22540004320 its reverse (2340004522), we get a palindrome (24880008842).

The spelling of 22540004320 in words is "twenty-two billion, five hundred forty million, four thousand, three hundred twenty".