23718188040 has 128 divisors (see below), whose sum is σ = 73564139520. Its totient is φ = 6111302400.

The previous prime is 23718188029. The next prime is 23718188047. The reversal of 23718188040 is 4088181732.

It is a junction number, because it is equal to n+sod(n) for n = 23718187983 and 23718188001.

It is not an unprimeable number, because it can be changed into a prime (23718188047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2565907 + ... + 2575133.

It is an arithmetic number, because the mean of its divisors is an integer number (574719840).

Almost surely, 2^23718188040 is an apocalyptic number.

23718188040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23718188040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36782069760).

23718188040 is an abundant number, since it is smaller than the sum of its proper divisors (49845951480).

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

23718188040 is a wasteful number, since it uses less digits than its factorization.

23718188040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9963 (or 9959 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

It can be divided in two parts, 237181 and 88040, that added together give a triangular number (325221 = T₈₀₆).

The spelling of 23718188040 in words is "twenty-three billion, seven hundred eighteen million, one hundred eighty-eight thousand, forty".