23705630 has 40 divisors (see below), whose sum is σ = 46782792. Its totient is φ = 8647392.

The previous prime is 23705623. The next prime is 23705651. The reversal of 23705630 is 3650732.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23705630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 285569 + ... + 285651.

Almost surely, 2^23705630 is an apocalyptic number.

23705630 is a deficient number, since it is larger than the sum of its proper divisors (23077162).

23705630 is an frugal number, since it uses more digits than its factorization.

23705630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 23705630 is about 4868.8427783201. The cubic root of 23705630 is about 287.2657398593.

It can be divided in two parts, 2370 and 5630, that added together give a cube (8000 = 20³).

The spelling of 23705630 in words is "twenty-three million, seven hundred five thousand, six hundred thirty".