1806049 has 8 divisors (see below), whose sum is σ = 2099520. Its totient is φ = 1521456.

The previous prime is 1806041. The next prime is 1806059. The reversal of 1806049 is 9406081.

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

It is a cyclic number.

It is not a de Polignac number, because 1806049 - 2³ = 1806041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1806041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (262440).

2^1806049 is an apocalyptic number.

It is an amenable number.

1806049 is a deficient number, since it is larger than the sum of its proper divisors (293471).

1806049 is an equidigital number, since it uses as much as digits as its factorization.

1806049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1806049 is about 1343.8932249253. The cubic root of 1806049 is about 121.7801514064.

The spelling of 1806049 in words is "one million, eight hundred six thousand, forty-nine".