18341872 has 10 divisors (see below), whose sum is σ = 35537408. Its totient is φ = 9170928.

The previous prime is 18341867. The next prime is 18341887. The reversal of 18341872 is 27814381.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573168 + ... + 573199.

Almost surely, 2^18341872 is an apocalyptic number.

It is an amenable number.

18341872 is a deficient number, since it is larger than the sum of its proper divisors (17195536).

18341872 is a wasteful number, since it uses less digits than its factorization.

18341872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146375 (or 1146369 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 18341872 is about 4282.7411782642. The cubic root of 18341872 is about 263.7229263256.

The spelling of 18341872 in words is "eighteen million, three hundred forty-one thousand, eight hundred seventy-two".