1449009 has 24 divisors (see below), whose sum is σ = 2227680. Its totient is φ = 940896.

The previous prime is 1449001. The next prime is 1449013. The reversal of 1449009 is 9009441.

It is not a de Polignac number, because 1449009 - 2³ = 1449001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1449001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16237 + ... + 16325.

It is an arithmetic number, because the mean of its divisors is an integer number (92820).

2^1449009 is an apocalyptic number.

It is an amenable number.

1449009 is a deficient number, since it is larger than the sum of its proper divisors (778671).

1449009 is an frugal number, since it uses more digits than its factorization.

1449009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1449009 is about 1203.7478971944. The cubic root of 1449009 is about 113.1593283281.

The spelling of 1449009 in words is "one million, four hundred forty-nine thousand, nine".