23440409244 has 288 divisors, whose sum is σ = 72431364096. Its totient is φ = 6247549440.

The previous prime is 23440409243. The next prime is 23440409249. The reversal of 23440409244 is 44290404432.

23440409244 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 0 + 409 + 244 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23440409199 and 23440409208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440409243) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59043654 + ... + 59044050.

It is an arithmetic number, because the mean of its divisors is an integer number (251497792).

Almost surely, 2^23440409244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23440409244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36215682048).

23440409244 is an abundant number, since it is smaller than the sum of its proper divisors (48990954852).

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

23440409244 is a wasteful number, since it uses less digits than its factorization.

23440409244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 23440409244 in words is "twenty-three billion, four hundred forty million, four hundred nine thousand, two hundred forty-four".