23400444232 has 64 divisors (see below), whose sum is σ = 50411419200. Its totient is φ = 10071210240.

The previous prime is 23400444163. The next prime is 23400444233. The reversal of 23400444232 is 23244400432.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23400444232.

It is not an unprimeable number, because it can be changed into a prime (23400444233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4941738 + ... + 4946470.

It is an arithmetic number, because the mean of its divisors is an integer number (787678425).

Almost surely, 2^23400444232 is an apocalyptic number.

23400444232 is a gapful number since it is divisible by the number (22) 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 23400444232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25205709600).

23400444232 is an abundant number, since it is smaller than the sum of its proper divisors (27010974968).

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

23400444232 is a wasteful number, since it uses less digits than its factorization.

23400444232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726 (or 7722 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 23400444232 its reverse (23244400432), we get a palindrome (46644844664).

The spelling of 23400444232 in words is "twenty-three billion, four hundred million, four hundred forty-four thousand, two hundred thirty-two".