23681830 has 32 divisors (see below), whose sum is σ = 44605440. Its totient is φ = 9041760.

The previous prime is 23681821. The next prime is 23681849. The reversal of 23681830 is 3818632.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 23681792 and 23681801.

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 15 ways as a sum of consecutive naturals, for example, 24007 + ... + 24973.

It is an arithmetic number, because the mean of its divisors is an integer number (1393920).

Almost surely, 2^23681830 is an apocalyptic number.

23681830 is a deficient number, since it is larger than the sum of its proper divisors (20923610).

23681830 is a wasteful number, since it uses less digits than its factorization.

23681830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 23681830 is about 4866.3980519477. The cubic root of 23681830 is about 287.1695712286.

The spelling of 23681830 in words is "twenty-three million, six hundred eighty-one thousand, eight hundred thirty".