22032312540 has 96 divisors (see below), whose sum is σ = 70525830144. Its totient is φ = 5034355200.

The previous prime is 22032312539. The next prime is 22032312553. The reversal of 22032312540 is 4521323022.

It is a self number, because there is not a number n which added to its sum of digits gives 22032312540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1758177 + ... + 1770663.

It is an arithmetic number, because the mean of its divisors is an integer number (734644064).

Almost surely, 2^22032312540 is an apocalyptic number.

22032312540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22032312540 is an abundant number, since it is smaller than the sum of its proper divisors (48493517604).

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

22032312540 is a wasteful number, since it uses less digits than its factorization.

22032312540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16707 (or 16705 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 22032312540 its reverse (4521323022), we get a palindrome (26553635562).

The spelling of 22032312540 in words is "twenty-two billion, thirty-two million, three hundred twelve thousand, five hundred forty".