23800018 has 16 divisors (see below), whose sum is σ = 39121056. Its totient is φ = 10769440.

The previous prime is 23799973. The next prime is 23800031. The reversal of 23800018 is 81000832.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2805 + ... + 7447.

It is an arithmetic number, because the mean of its divisors is an integer number (2445066).

Almost surely, 2^23800018 is an apocalyptic number.

23800018 is a deficient number, since it is larger than the sum of its proper divisors (15321038).

23800018 is a wasteful number, since it uses less digits than its factorization.

23800018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 23800018 is about 4878.5262118800. The cubic root of 23800018 is about 287.6465007606.

The spelling of 23800018 in words is "twenty-three million, eight hundred thousand, eighteen".