23618938 has 16 divisors (see below), whose sum is σ = 42621120. Its totient is φ = 9589536.

The previous prime is 23618929. The next prime is 23618971. The reversal of 23618938 is 83981632.

It is a self number, because there is not a number n which added to its sum of digits gives 23618938.

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 7 ways as a sum of consecutive naturals, for example, 44131 + ... + 44662.

It is an arithmetic number, because the mean of its divisors is an integer number (2663820).

Almost surely, 2^23618938 is an apocalyptic number.

23618938 is a deficient number, since it is larger than the sum of its proper divisors (19002182).

23618938 is a wasteful number, since it uses less digits than its factorization.

23618938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88821.

The product of its digits is 62208, while the sum is 40.

The square root of 23618938 is about 4859.9318925269. The cubic root of 23618938 is about 286.9151331179.

The spelling of 23618938 in words is "twenty-three million, six hundred eighteen thousand, nine hundred thirty-eight".