23409818 has 8 divisors (see below), whose sum is σ = 35538048. Its totient is φ = 11563804.

The previous prime is 23409803. The next prime is 23409847. The reversal of 23409818 is 81890432.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70346 + ... + 70677.

It is an arithmetic number, because the mean of its divisors is an integer number (4442256).

Almost surely, 2^23409818 is an apocalyptic number.

23409818 is a deficient number, since it is larger than the sum of its proper divisors (12128230).

23409818 is a wasteful number, since it uses less digits than its factorization.

23409818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141108.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 23409818 is about 4838.3693534082. The cubic root of 23409818 is about 286.0658478796.

The spelling of 23409818 in words is "twenty-three million, four hundred nine thousand, eight hundred eighteen".