1800214 has 8 divisors (see below), whose sum is σ = 2908080. Its totient is φ = 830856.

The previous prime is 1800209. The next prime is 1800221. The reversal of 1800214 is 4120081.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34594 + ... + 34645.

It is an arithmetic number, because the mean of its divisors is an integer number (363510).

2^1800214 is an apocalyptic number.

1800214 is a deficient number, since it is larger than the sum of its proper divisors (1107866).

1800214 is a wasteful number, since it uses less digits than its factorization.

1800214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69254.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1800214 is about 1341.7205372208. The cubic root of 1800214 is about 121.6488604287.

Adding to 1800214 its reverse (4120081), we get a palindrome (5920295).

The spelling of 1800214 in words is "one million, eight hundred thousand, two hundred fourteen".