23864036240 has 120 divisors (see below), whose sum is σ = 61128587520. Its totient is φ = 8657608960.

The previous prime is 23864036237. The next prime is 23864036257. The reversal of 23864036240 is 4263046832.

It is a junction number, because it is equal to n+sod(n) for n = 23864036194 and 23864036203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4517921 + ... + 4523199.

It is an arithmetic number, because the mean of its divisors is an integer number (509404896).

Almost surely, 2^23864036240 is an apocalyptic number.

23864036240 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 23864036240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30564293760).

23864036240 is an abundant number, since it is smaller than the sum of its proper divisors (37264551280).

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

23864036240 is a wasteful number, since it uses less digits than its factorization.

23864036240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5781 (or 5764 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 23864036240 in words is "twenty-three billion, eight hundred sixty-four million, thirty-six thousand, two hundred forty".