1082409 has 4 divisors (see below), whose sum is σ = 1443216. Its totient is φ = 721604.

The previous prime is 1082399. The next prime is 1082429. The reversal of 1082409 is 9042801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1082409 - 2⁵ = 1082377 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1082429) 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, 180399 + ... + 180404.

It is an arithmetic number, because the mean of its divisors is an integer number (360804).

2^1082409 is an apocalyptic number.

It is an amenable number.

1082409 is a deficient number, since it is larger than the sum of its proper divisors (360807).

1082409 is an equidigital number, since it uses as much as digits as its factorization.

1082409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360806.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1082409 is about 1040.3888696060. The cubic root of 1082409 is about 102.6747840792.

The spelling of 1082409 in words is "one million, eighty-two thousand, four hundred nine".