23840766440 has 32 divisors (see below), whose sum is σ = 53658128160. Its totient is φ = 9533390400.

The previous prime is 23840766437. The next prime is 23840766451. The reversal of 23840766440 is 4466704832.

It is a junction number, because it is equal to n+sod(n) for n = 23840766391 and 23840766400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43775 + ... + 222705.

It is an arithmetic number, because the mean of its divisors is an integer number (1676816505).

Almost surely, 2^23840766440 is an apocalyptic number.

23840766440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23840766440 is an abundant number, since it is smaller than the sum of its proper divisors (29817361720).

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

23840766440 is a wasteful number, since it uses less digits than its factorization.

23840766440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182273 (or 182269 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 23840766440 in words is "twenty-three billion, eight hundred forty million, seven hundred sixty-six thousand, four hundred forty".