1812230 has 16 divisors (see below), whose sum is σ = 3728160. Its totient is φ = 621312.

The previous prime is 1812227. The next prime is 1812233. The reversal of 1812230 is 322181.

It is an interprime number because it is at equal distance from previous prime (1812227) and next prime (1812233).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1812199 and 1812208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12875 + ... + 13014.

It is an arithmetic number, because the mean of its divisors is an integer number (233010).

2^1812230 is an apocalyptic number.

1812230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1812230 is an abundant number, since it is smaller than the sum of its proper divisors (1915930).

1812230 is a wasteful number, since it uses less digits than its factorization.

1812230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25903.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1812230 is about 1346.1909225663. The cubic root of 1812230 is about 121.9189195206.

The spelling of 1812230 in words is "one million, eight hundred twelve thousand, two hundred thirty".