18944934 has 8 divisors (see below), whose sum is σ = 37889880. Its totient is φ = 6314976.

The previous prime is 18944927. The next prime is 18944977. The reversal of 18944934 is 43944981.

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

18944934 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 1578739 + ... + 1578750.

It is an arithmetic number, because the mean of its divisors is an integer number (4736235).

Almost surely, 2^18944934 is an apocalyptic number.

18944934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18944934 is a wasteful number, since it uses less digits than its factorization.

18944934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157494.

The product of its digits is 124416, while the sum is 42.

The square root of 18944934 is about 4352.5778568568. The cubic root of 18944934 is about 266.5821291059.

The spelling of 18944934 in words is "eighteen million, nine hundred forty-four thousand, nine hundred thirty-four".