23443040000 has 90 divisors (see below), whose sum is σ = 58474813320. Its totient is φ = 9377152000.

The previous prime is 23443039957. The next prime is 23443040081. The reversal of 23443040000 is 4034432.

It is a happy number.

It is a super-2 number, since 2×23443040000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 86741 + ... + 233259.

It is an arithmetic number, because the mean of its divisors is an integer number (649720148).

Almost surely, 2^23443040000 is an apocalyptic number.

23443040000 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 23443040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29237406660).

23443040000 is an abundant number, since it is smaller than the sum of its proper divisors (35031773320).

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

23443040000 is an frugal number, since it uses more digits than its factorization.

23443040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146555 (or 146526 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 23443040000 its reverse (4034432), we get a palindrome (23447074432).

The spelling of 23443040000 in words is "twenty-three billion, four hundred forty-three million, forty thousand".