23660740 has 24 divisors (see below), whose sum is σ = 50746752. Its totient is φ = 9262560.

The previous prime is 23660699. The next prime is 23660743. The reversal of 23660740 is 4706632.

It is a junction number, because it is equal to n+sod(n) for n = 23660699 and 23660708.

It is not an unprimeable number, because it can be changed into a prime (23660743) 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, 11646 + ... + 13525.

It is an arithmetic number, because the mean of its divisors is an integer number (2114448).

Almost surely, 2^23660740 is an apocalyptic number.

23660740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23660740 is an abundant number, since it is smaller than the sum of its proper divisors (27086012).

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

23660740 is a wasteful number, since it uses less digits than its factorization.

23660740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25227 (or 25225 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 23660740 is about 4864.2306688725. The cubic root of 23660740 is about 287.0842990318.

The spelling of 23660740 in words is "twenty-three million, six hundred sixty thousand, seven hundred forty".