1448809 has 4 divisors (see below), whose sum is σ = 1488004. Its totient is φ = 1409616.

The previous prime is 1448803. The next prime is 1448819. The reversal of 1448809 is 9088441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9088441 = 19 ⋅478339.

It can be written as a sum of positive squares in 2 ways, for example, as 1265625 + 183184 = 1125^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448809 - 2³ = 1448801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1448801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19542 + ... + 19615.

It is an arithmetic number, because the mean of its divisors is an integer number (372001).

2^1448809 is an apocalyptic number.

It is an amenable number.

1448809 is a deficient number, since it is larger than the sum of its proper divisors (39195).

1448809 is an equidigital number, since it uses as much as digits as its factorization.

1448809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39194.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1448809 is about 1203.6648204546. The cubic root of 1448809 is about 113.1541218026.

The spelling of 1448809 in words is "one million, four hundred forty-eight thousand, eight hundred nine".