23300044440 has 128 divisors (see below), whose sum is σ = 72223488000. Its totient is φ = 6010135040.

The previous prime is 23300044393. The next prime is 23300044477. The reversal of 23300044440 is 4444000332.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23300044440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425761 + ... + 477359.

It is an arithmetic number, because the mean of its divisors is an integer number (564246000).

Almost surely, 2^23300044440 is an apocalyptic number.

23300044440 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 23300044440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36111744000).

23300044440 is an abundant number, since it is smaller than the sum of its proper divisors (48923443560).

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

23300044440 is a wasteful number, since it uses less digits than its factorization.

23300044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51737 (or 51733 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 23300044440 its reverse (4444000332), we get a palindrome (27744044772).

The spelling of 23300044440 in words is "twenty-three billion, three hundred million, forty-four thousand, four hundred forty".