1805214 has 8 divisors (see below), whose sum is σ = 3610440. Its totient is φ = 601736.

The previous prime is 1805203. The next prime is 1805227. The reversal of 1805214 is 4125081.

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

1805214 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 150429 + ... + 150440.

It is an arithmetic number, because the mean of its divisors is an integer number (451305).

2^1805214 is an apocalyptic number.

1805214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1805214 is a wasteful number, since it uses less digits than its factorization.

1805214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300874.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1805214 is about 1343.5825244472. The cubic root of 1805214 is about 121.7613807637.

The spelling of 1805214 in words is "one million, eight hundred five thousand, two hundred fourteen".