23003344240 has 20 divisors (see below), whose sum is σ = 53482775544. Its totient is φ = 9201337664.

The previous prime is 23003344163. The next prime is 23003344241. The reversal of 23003344240 is 4244330032.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003344241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143770822 + ... + 143770981.

Almost surely, 2^23003344240 is an apocalyptic number.

23003344240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003344240 is an abundant number, since it is smaller than the sum of its proper divisors (30479431304).

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

23003344240 is a wasteful number, since it uses less digits than its factorization.

23003344240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287541816 (or 287541810 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 23003344240 its reverse (4244330032), we get a palindrome (27247674272).

The spelling of 23003344240 in words is "twenty-three billion, three million, three hundred forty-four thousand, two hundred forty".