1809230 has 16 divisors (see below), whose sum is σ = 3274560. Its totient is φ = 719712.

The previous prime is 1809229. The next prime is 1809233. The reversal of 1809230 is 329081.

It is a junction number, because it is equal to n+sod(n) for n = 1809196 and 1809205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1809233) 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 7 ways as a sum of consecutive naturals, for example, 2012 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (204660).

2^1809230 is an apocalyptic number.

1809230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1809230 is a deficient number, since it is larger than the sum of its proper divisors (1465330).

1809230 is a wasteful number, since it uses less digits than its factorization.

1809230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1809230 is about 1345.0762060196. The cubic root of 1809230 is about 121.8516067308.

The spelling of 1809230 in words is "one million, eight hundred nine thousand, two hundred thirty".