1818946 has 16 divisors (see below), whose sum is σ = 2900160. Its totient is φ = 853200.

The previous prime is 1818937. The next prime is 1818977. The reversal of 1818946 is 6498181.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5580 + ... + 5896.

It is an arithmetic number, because the mean of its divisors is an integer number (181260).

2^1818946 is an apocalyptic number.

1818946 is a deficient number, since it is larger than the sum of its proper divisors (1081214).

1818946 is a wasteful number, since it uses less digits than its factorization.

1818946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its digits is 13824, while the sum is 37.

The square root of 1818946 is about 1348.6830613602. The cubic root of 1818946 is about 122.0693415714.

The spelling of 1818946 in words is "one million, eight hundred eighteen thousand, nine hundred forty-six".