22745515940 has 48 divisors (see below), whose sum is σ = 54763750272. Its totient is φ = 7773532416.

The previous prime is 22745515939. The next prime is 22745515981. The reversal of 22745515940 is 4951554722.

It is a junction number, because it is equal to n+sod(n) for n = 22745515891 and 22745515900.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215714 + ... + 303353.

It is an arithmetic number, because the mean of its divisors is an integer number (1140911464).

Almost surely, 2^22745515940 is an apocalyptic number.

22745515940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22745515940 is an abundant number, since it is smaller than the sum of its proper divisors (32018234332).

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

22745515940 is a wasteful number, since it uses less digits than its factorization.

22745515940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519396 (or 519394 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 22745515940 in words is "twenty-two billion, seven hundred forty-five million, five hundred fifteen thousand, nine hundred forty".