23340105840 has 160 divisors (see below), whose sum is σ = 74908348416. Its totient is φ = 6005514240.

The previous prime is 23340105839. The next prime is 23340105883. The reversal of 23340105840 is 4850104332.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23340105798 and 23340105807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2621877 + ... + 2630763.

Almost surely, 2^23340105840 is an apocalyptic number.

23340105840 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 23340105840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37454174208).

23340105840 is an abundant number, since it is smaller than the sum of its proper divisors (51568242576).

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

23340105840 is a wasteful number, since it uses less digits than its factorization.

23340105840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287 (or 9281 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 23340105840 in words is "twenty-three billion, three hundred forty million, one hundred five thousand, eight hundred forty".