18313934 has 8 divisors (see below), whose sum is σ = 28665360. Its totient is φ = 8758816.

The previous prime is 18313907. The next prime is 18313949. The reversal of 18313934 is 43931381.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18313934.

It is a congruent number.

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, 199019 + ... + 199110.

It is an arithmetic number, because the mean of its divisors is an integer number (3583170).

Almost surely, 2^18313934 is an apocalyptic number.

18313934 is a deficient number, since it is larger than the sum of its proper divisors (10351426).

18313934 is a wasteful number, since it uses less digits than its factorization.

18313934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398154.

The product of its digits is 7776, while the sum is 32.

The square root of 18313934 is about 4279.4782392250. The cubic root of 18313934 is about 263.5889589901.

The spelling of 18313934 in words is "eighteen million, three hundred thirteen thousand, nine hundred thirty-four".