23340553728 has 80 divisors (see below), whose sum is σ = 64186653696. Its totient is φ = 7529195520.

The previous prime is 23340553723. The next prime is 23340553729. The reversal of 23340553728 is 82735504332.

It is a self number, because there is not a number n which added to its sum of digits gives 23340553728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23340553723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197476 + ... + 292707.

Almost surely, 2^23340553728 is an apocalyptic number.

It is an amenable number.

23340553728 is an abundant number, since it is smaller than the sum of its proper divisors (40846099968).

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

23340553728 is an equidigital number, since it uses as much as digits as its factorization.

23340553728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490235 (or 490219 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 23340553728 in words is "twenty-three billion, three hundred forty million, five hundred fifty-three thousand, seven hundred twenty-eight".