1918894 has 8 divisors (see below), whose sum is σ = 2956248. Its totient is φ = 933480.

The previous prime is 1918879. The next prime is 1918897. The reversal of 1918894 is 4988191.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12892 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (369531).

2^1918894 is an apocalyptic number.

1918894 is a deficient number, since it is larger than the sum of its proper divisors (1037354).

1918894 is a wasteful number, since it uses less digits than its factorization.

1918894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25970.

The product of its digits is 20736, while the sum is 40.

The square root of 1918894 is about 1385.2414951914. The cubic root of 1918894 is about 124.2654303823.

The spelling of 1918894 in words is "one million, nine hundred eighteen thousand, eight hundred ninety-four".