1800814 has 8 divisors (see below), whose sum is σ = 2719800. Its totient is φ = 894216.

The previous prime is 1800811. The next prime is 1800823. The reversal of 1800814 is 4180081.

1800814 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2724 + ... + 3319.

It is an arithmetic number, because the mean of its divisors is an integer number (339975).

2^1800814 is an apocalyptic number.

1800814 is a deficient number, since it is larger than the sum of its proper divisors (918986).

1800814 is a wasteful number, since it uses less digits than its factorization.

1800814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 1800814 is about 1341.9441121001. The cubic root of 1800814 is about 121.6623738608.

Adding to 1800814 its reverse (4180081), we get a palindrome (5980895).

The spelling of 1800814 in words is "one million, eight hundred thousand, eight hundred fourteen".