23109818 has 8 divisors (see below), whose sum is σ = 35783040. Its totient is φ = 11182140.

The previous prime is 23109811. The next prime is 23109847. The reversal of 23109818 is 81890132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23109811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186308 + ... + 186431.

It is an arithmetic number, because the mean of its divisors is an integer number (4472880).

Almost surely, 2^23109818 is an apocalyptic number.

23109818 is a deficient number, since it is larger than the sum of its proper divisors (12673222).

23109818 is a wasteful number, since it uses less digits than its factorization.

23109818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372772.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 23109818 is about 4807.2672070523. The cubic root of 23109818 is about 284.8385994926.

The spelling of 23109818 in words is "twenty-three million, one hundred nine thousand, eight hundred eighteen".