18379894 has 8 divisors (see below), whose sum is σ = 29690640. Its totient is φ = 8483016.

The previous prime is 18379891. The next prime is 18379901. The reversal of 18379894 is 49897381.

It is a happy number.

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

It is a super-3 number, since 3×18379894³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18379891) 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, 353434 + ... + 353485.

It is an arithmetic number, because the mean of its divisors is an integer number (3711330).

Almost surely, 2^18379894 is an apocalyptic number.

18379894 is a deficient number, since it is larger than the sum of its proper divisors (11310746).

18379894 is a wasteful number, since it uses less digits than its factorization.

18379894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706934.

The product of its digits is 435456, while the sum is 49.

The square root of 18379894 is about 4287.1778596181. The cubic root of 18379894 is about 263.9050297364.

The spelling of 18379894 in words is "eighteen million, three hundred seventy-nine thousand, eight hundred ninety-four".