1440814 has 4 divisors (see below), whose sum is σ = 2161224. Its totient is φ = 720406.

The previous prime is 1440811. The next prime is 1440823. The reversal of 1440814 is 4180441.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440811) by changing a digit.

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 as a sum of consecutive naturals, namely, 360202 + ... + 360205.

It is an arithmetic number, because the mean of its divisors is an integer number (540306).

2^1440814 is an apocalyptic number.

1440814 is a deficient number, since it is larger than the sum of its proper divisors (720410).

1440814 is an equidigital number, since it uses as much as digits as its factorization.

1440814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720409.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 1440814 is about 1200.3391187494. The cubic root of 1440814 is about 112.9455973279.

The spelling of 1440814 in words is "one million, four hundred forty thousand, eight hundred fourteen".