22805723940 has 48 divisors (see below), whose sum is σ = 67216873920. Its totient is φ = 5761445760.

The previous prime is 22805723813. The next prime is 22805723953. The reversal of 22805723940 is 4932750822.

It is a junction number, because it is equal to n+sod(n) for n = 22805723892 and 22805723901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10001371 + ... + 10003650.

It is an arithmetic number, because the mean of its divisors is an integer number (1400351540).

Almost surely, 2^22805723940 is an apocalyptic number.

22805723940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22805723940 is an abundant number, since it is smaller than the sum of its proper divisors (44411149980).

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

22805723940 is a wasteful number, since it uses less digits than its factorization.

22805723940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20005052 (or 20005050 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 22805723940 in words is "twenty-two billion, eight hundred five million, seven hundred twenty-three thousand, nine hundred forty".