22740021948 has 24 divisors (see below), whose sum is σ = 60640058752. Its totient is φ = 6497149104.

The previous prime is 22740021937. The next prime is 22740021949. The reversal of 22740021948 is 84912004722.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22740021949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135357190 + ... + 135357357.

Almost surely, 2^22740021948 is an apocalyptic number.

22740021948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22740021948 is an abundant number, since it is smaller than the sum of its proper divisors (37900036804).

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

22740021948 is a wasteful number, since it uses less digits than its factorization.

22740021948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270714561 (or 270714559 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 22740021948 in words is "twenty-two billion, seven hundred forty million, twenty-one thousand, nine hundred forty-eight".