22640920748 has 12 divisors (see below), whose sum is σ = 39628659840. Its totient is φ = 11318446512.

The previous prime is 22640920747. The next prime is 22640920751. The reversal of 22640920748 is 84702904622.

It is a super-3 number, since 3×22640920748³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 22640920699 and 22640920708.

It is not an unprimeable number, because it can be changed into a prime (22640920741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478028 + ... + 523251.

It is an arithmetic number, because the mean of its divisors is an integer number (3302388320).

Almost surely, 2^22640920748 is an apocalyptic number.

It is an amenable number.

22640920748 is a deficient number, since it is larger than the sum of its proper divisors (16987739092).

22640920748 is a wasteful number, since it uses less digits than its factorization.

22640920748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006936 (or 1006934 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 22640920748 in words is "twenty-two billion, six hundred forty million, nine hundred twenty thousand, seven hundred forty-eight".