1830866 has 8 divisors (see below), whose sum is σ = 2907900. Its totient is φ = 861568.

The previous prime is 1830863. The next prime is 1830887. The reversal of 1830866 is 6680381.

It can be written as a sum of positive squares in 2 ways, for example, as 1380625 + 450241 = 1175^2 + 671^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1830863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26891 + ... + 26958.

2^1830866 is an apocalyptic number.

1830866 is a deficient number, since it is larger than the sum of its proper divisors (1077034).

1830866 is a wasteful number, since it uses less digits than its factorization.

1830866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53868.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1830866 is about 1353.0949707984. The cubic root of 1830866 is about 122.3354113362.

The spelling of 1830866 in words is "one million, eight hundred thirty thousand, eight hundred sixty-six".