23685630 has 32 divisors (see below), whose sum is σ = 59318784. Its totient is φ = 6041376.

The previous prime is 23685619. The next prime is 23685637. The reversal of 23685630 is 3658632.

It is a super-2 number, since 2×23685630² = 1122018136993800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23685591 and 23685600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23685637) 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, 16474 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (1853712).

Almost surely, 2^23685630 is an apocalyptic number.

23685630 is an abundant number, since it is smaller than the sum of its proper divisors (35633154).

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

23685630 is a wasteful number, since it uses less digits than its factorization.

23685630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34360.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 23685630 is about 4866.7884687954. The cubic root of 23685630 is about 287.1849302051.

The spelling of 23685630 in words is "twenty-three million, six hundred eighty-five thousand, six hundred thirty".