23301223440 has 80 divisors (see below), whose sum is σ = 78800510016. Its totient is φ = 5648780800.

The previous prime is 23301223397. The next prime is 23301223441. The reversal of 23301223440 is 4432210332.

It is a tau number, because it is divible by the number of its divisors (80).

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 23301223440.

It is not an unprimeable number, because it can be changed into a prime (23301223441) 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, 4410471 + ... + 4415750.

Almost surely, 2^23301223440 is an apocalyptic number.

23301223440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23301223440 is an abundant number, since it is smaller than the sum of its proper divisors (55499286576).

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

23301223440 is a wasteful number, since it uses less digits than its factorization.

23301223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8826248 (or 8826242 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 23301223440 its reverse (4432210332), we get a palindrome (27733433772).

The spelling of 23301223440 in words is "twenty-three billion, three hundred one million, two hundred twenty-three thousand, four hundred forty".