23993928240 has 80 divisors (see below), whose sum is σ = 75076409088. Its totient is φ = 6338576128.

The previous prime is 23993928223. The next prime is 23993928241. The reversal of 23993928240 is 4282939932.

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

It is not an unprimeable number, because it can be changed into a prime (23993928241) 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, 441492 + ... + 492851.

Almost surely, 2^23993928240 is an apocalyptic number.

23993928240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23993928240 is an abundant number, since it is smaller than the sum of its proper divisors (51082480848).

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

23993928240 is a wasteful number, since it uses less digits than its factorization.

23993928240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934466 (or 934460 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 23993928240 in words is "twenty-three billion, nine hundred ninety-three million, nine hundred twenty-eight thousand, two hundred forty".