22008948940 has 36 divisors (see below), whose sum is σ = 50802480288. Its totient is φ = 8003253280.

The previous prime is 22008948931. The next prime is 22008948961. The reversal of 22008948940 is 4984980022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4544884 + ... + 4549723.

It is an arithmetic number, because the mean of its divisors is an integer number (1411180008).

Almost surely, 2^22008948940 is an apocalyptic number.

22008948940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22008948940 is an abundant number, since it is smaller than the sum of its proper divisors (28793531348).

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

22008948940 is a wasteful number, since it uses less digits than its factorization.

22008948940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9094638 (or 9094625 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 22008948940 in words is "twenty-two billion, eight million, nine hundred forty-eight thousand, nine hundred forty".