22305023504240 has 160 divisors (see below), whose sum is σ = 53522130364416. Its totient is φ = 8640744652800.

The previous prime is 22305023504209. The next prime is 22305023504243. The reversal of 22305023504240 is 4240532050322.

It is a junction number, because it is equal to n+sod(n) for n = 22305023504197 and 22305023504206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22305023504243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157449440 + ... + 157591040.

Almost surely, 2^{22305023504240} is an apocalyptic number.

22305023504240 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 22305023504240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26761065182208).

22305023504240 is an abundant number, since it is smaller than the sum of its proper divisors (31217106860176).

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

22305023504240 is a wasteful number, since it uses less digits than its factorization.

22305023504240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142147 (or 142141 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 22305023504240 its reverse (4240532050322), we get a palindrome (26545555554562).

The spelling of 22305023504240 in words is "twenty-two trillion, three hundred five billion, twenty-three million, five hundred four thousand, two hundred forty".