1444891 has 4 divisors (see below), whose sum is σ = 1651312. Its totient is φ = 1238472.

The previous prime is 1444873. The next prime is 1444897. The reversal of 1444891 is 1984441.

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

It is a cyclic number.

It is not a de Polignac number, because 1444891 - 2⁷ = 1444763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444897) 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, 103200 + ... + 103213.

It is an arithmetic number, because the mean of its divisors is an integer number (412828).

2^1444891 is an apocalyptic number.

1444891 is a deficient number, since it is larger than the sum of its proper divisors (206421).

1444891 is an equidigital number, since it uses as much as digits as its factorization.

1444891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206420.

The product of its digits is 4608, while the sum is 31.

The square root of 1444891 is about 1202.0361891391. The cubic root of 1444891 is about 113.0520291898.

The spelling of 1444891 in words is "one million, four hundred forty-four thousand, eight hundred ninety-one".