23985740 has 24 divisors (see below), whose sum is σ = 50515920. Its totient is φ = 9566528.

The previous prime is 23985739. The next prime is 23985751. The reversal of 23985740 is 4758932.

It is a junction number, because it is equal to n+sod(n) for n = 23985694 and 23985703.

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, 6239 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (2104830).

Almost surely, 2^23985740 is an apocalyptic number.

23985740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23985740 is an abundant number, since it is smaller than the sum of its proper divisors (26530180).

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

23985740 is a wasteful number, since it uses less digits than its factorization.

23985740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 23985740 is about 4897.5238641583. The cubic root of 23985740 is about 288.3927736350.

The spelling of 23985740 in words is "twenty-three million, nine hundred eighty-five thousand, seven hundred forty".