1800014 has 4 divisors (see below), whose sum is σ = 2700024. Its totient is φ = 900006.

The previous prime is 1799999. The next prime is 1800017. The reversal of 1800014 is 4100081.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4100081 = 37 ⋅110813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450002 + ... + 450005.

It is an arithmetic number, because the mean of its divisors is an integer number (675006).

2^1800014 is an apocalyptic number.

1800014 is a deficient number, since it is larger than the sum of its proper divisors (900010).

1800014 is an equidigital number, since it uses as much as digits as its factorization.

1800014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900009.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1800014 is about 1341.6460039817. The cubic root of 1800014 is about 121.6443552841.

Adding to 1800014 its reverse (4100081), we get a palindrome (5900095).

The spelling of 1800014 in words is "one million, eight hundred thousand, fourteen".