1444009 has 8 divisors (see below), whose sum is σ = 1722240. Its totient is φ = 1183776.

The previous prime is 1444007. The next prime is 1444043. The reversal of 1444009 is 9004441.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1444009 - 2¹ = 1444007 is a prime.

1444009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1444007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4324 + ... + 4645.

It is an arithmetic number, because the mean of its divisors is an integer number (215280).

2^1444009 is an apocalyptic number.

It is an amenable number.

1444009 is a deficient number, since it is larger than the sum of its proper divisors (278231).

1444009 is an equidigital number, since it uses as much as digits as its factorization.

1444009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1444009 is about 1201.6692556606. The cubic root of 1444009 is about 113.0290211831.

It can be divided in two parts, 144400 and 9, that multiplied together give a square (1299600 = 1140²).

The spelling of 1444009 in words is "one million, four hundred forty-four thousand, nine".