23307515940 has 72 divisors (see below), whose sum is σ = 65432884608. Its totient is φ = 6199007360.

The previous prime is 23307515929. The next prime is 23307515951. The reversal of 23307515940 is 4951570332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23307515929) and next prime (23307515951).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25584085 + ... + 25584995.

It is an arithmetic number, because the mean of its divisors is an integer number (908790064).

Almost surely, 2^23307515940 is an apocalyptic number.

23307515940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23307515940 is an abundant number, since it is smaller than the sum of its proper divisors (42125368668).

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

23307515940 is an equidigital number, since it uses as much as digits as its factorization.

23307515940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The spelling of 23307515940 in words is "twenty-three billion, three hundred seven million, five hundred fifteen thousand, nine hundred forty".