1805230 has 64 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 552960.

The previous prime is 1805227. The next prime is 1805231. The reversal of 1805230 is 325081.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1805198 and 1805207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1805231) 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 31 ways as a sum of consecutive naturals, for example, 44010 + ... + 44050.

It is an arithmetic number, because the mean of its divisors is an integer number (64638).

2^1805230 is an apocalyptic number.

1805230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1805230 is an abundant number, since it is smaller than the sum of its proper divisors (2331602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1805230 is a wasteful number, since it uses less digits than its factorization.

1805230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1805230 is about 1343.5884786645. The cubic root of 1805230 is about 121.7617404951.

The spelling of 1805230 in words is "one million, eight hundred five thousand, two hundred thirty".