1994918 has 8 divisors (see below), whose sum is σ = 3020160. Its totient is φ = 988200.

The previous prime is 1994911. The next prime is 1994947. The reversal of 1994918 is 8194991.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4358 + ... + 4793.

It is an arithmetic number, because the mean of its divisors is an integer number (377520).

2^1994918 is an apocalyptic number.

1994918 is a deficient number, since it is larger than the sum of its proper divisors (1025242).

1994918 is a wasteful number, since it uses less digits than its factorization.

1994918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262.

The product of its digits is 23328, while the sum is 41.

The square root of 1994918 is about 1412.4156611989. The cubic root of 1994918 is about 125.8852991609.

The spelling of 1994918 in words is "one million, nine hundred ninety-four thousand, nine hundred eighteen".