23023440032 has 48 divisors (see below), whose sum is σ = 47004676992. Its totient is φ = 11091790080.

The previous prime is 23023440007. The next prime is 23023440067. The reversal of 23023440032 is 23004432032.

It is a super-2 number, since 2×23023440032² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27557 + ... + 216347.

It is an arithmetic number, because the mean of its divisors is an integer number (979264104).

Almost surely, 2^23023440032 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 23023440032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23502338496).

23023440032 is an abundant number, since it is smaller than the sum of its proper divisors (23981236960).

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

23023440032 is a wasteful number, since it uses less digits than its factorization.

23023440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188941 (or 188933 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 23023440032 its reverse (23004432032), we get a palindrome (46027872064).

The spelling of 23023440032 in words is "twenty-three billion, twenty-three million, four hundred forty thousand, thirty-two".