24323622640 has 80 divisors (see below), whose sum is σ = 57021127200. Its totient is φ = 9649115136.

The previous prime is 24323622637. The next prime is 24323622691. The reversal of 24323622640 is 4622632342.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 24323622596 and 24323622605.

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 15 ways as a sum of consecutive naturals, for example, 5854804 + ... + 5858956.

It is an arithmetic number, because the mean of its divisors is an integer number (712764090).

Almost surely, 2^24323622640 is an apocalyptic number.

24323622640 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 24323622640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28510563600).

24323622640 is an abundant number, since it is smaller than the sum of its proper divisors (32697504560).

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

24323622640 is a wasteful number, since it uses less digits than its factorization.

24323622640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754 (or 4748 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

The spelling of 24323622640 in words is "twenty-four billion, three hundred twenty-three million, six hundred twenty-two thousand, six hundred forty".