23922491140 has 24 divisors (see below), whose sum is σ = 50755145112. Its totient is φ = 9470346240.

The previous prime is 23922491119. The next prime is 23922491141. The reversal of 23922491140 is 4119422932.

It can be written as a sum of positive squares in 4 ways, for example, as 1947986496 + 21974504644 = 44136^2 + 148238^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23922491140.

It is not an unprimeable number, because it can be changed into a prime (23922491141) 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, 6163651 + ... + 6167530.

It is an arithmetic number, because the mean of its divisors is an integer number (2114797713).

Almost surely, 2^23922491140 is an apocalyptic number.

23922491140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23922491140 is an abundant number, since it is smaller than the sum of its proper divisors (26832653972).

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

23922491140 is a wasteful number, since it uses less digits than its factorization.

23922491140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12331287 (or 12331285 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 23922491140 in words is "twenty-three billion, nine hundred twenty-two million, four hundred ninety-one thousand, one hundred forty".