1806045 has 16 divisors (see below), whose sum is σ = 3042240. Its totient is φ = 912384.

The previous prime is 1806041. The next prime is 1806059. The reversal of 1806045 is 5406081.

It is not a de Polignac number, because 1806045 - 2² = 1806041 is a prime.

It is an Ulam number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2884 + ... + 3453.

It is an arithmetic number, because the mean of its divisors is an integer number (190140).

2^1806045 is an apocalyptic number.

1806045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1806045 is a deficient number, since it is larger than the sum of its proper divisors (1236195).

1806045 is a wasteful number, since it uses less digits than its factorization.

1806045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1806045 is about 1343.8917367110. The cubic root of 1806045 is about 121.7800615010.

The spelling of 1806045 in words is "one million, eight hundred six thousand, forty-five".