22440132232040 has 128 divisors (see below), whose sum is σ = 54387860313600. Its totient is φ = 8305230931200.

The previous prime is 22440132232031. The next prime is 22440132232057. The reversal of 22440132232040 is 4023223104422.

It is a junction number, because it is equal to n+sod(n) for n = 22440132231994 and 22440132232012.

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, 751723115 + ... + 751752965.

It is an arithmetic number, because the mean of its divisors is an integer number (424905158700).

Almost surely, 2^{22440132232040} is an apocalyptic number.

22440132232040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22440132232040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27193930156800).

22440132232040 is an abundant number, since it is smaller than the sum of its proper divisors (31947728081560).

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

22440132232040 is a wasteful number, since it uses less digits than its factorization.

22440132232040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52927 (or 52923 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 22440132232040 its reverse (4023223104422), we get a palindrome (26463355336462).

The spelling of 22440132232040 in words is "twenty-two trillion, four hundred forty billion, one hundred thirty-two million, two hundred thirty-two thousand, forty".