1918814 has 8 divisors (see below), whose sum is σ = 2977560. Its totient is φ = 926296.

The previous prime is 1918811. The next prime is 1918817. The reversal of 1918814 is 4188191.

It is an interprime number because it is at equal distance from previous prime (1918811) and next prime (1918817).

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 (1918811) 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, 16484 + ... + 16599.

It is an arithmetic number, because the mean of its divisors is an integer number (372195).

2^1918814 is an apocalyptic number.

1918814 is a deficient number, since it is larger than the sum of its proper divisors (1058746).

1918814 is a wasteful number, since it uses less digits than its factorization.

1918814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33114.

The product of its digits is 2304, while the sum is 32.

The square root of 1918814 is about 1385.2126190589. The cubic root of 1918814 is about 124.2637034548.

The spelling of 1918814 in words is "one million, nine hundred eighteen thousand, eight hundred fourteen".