2409005 has 4 divisors (see below), whose sum is σ = 2890812. Its totient is φ = 1927200.

The previous prime is 2408999. The next prime is 2409023. The reversal of 2409005 is 5009042.

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

It can be written as a sum of positive squares in 2 ways, for example, as 724201 + 1684804 = 851^2 + 1298^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2409005 is a prime.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240896 + ... + 240905.

It is an arithmetic number, because the mean of its divisors is an integer number (722703).

2^2409005 is an apocalyptic number.

It is an amenable number.

2409005 is a deficient number, since it is larger than the sum of its proper divisors (481807).

2409005 is an equidigital number, since it uses as much as digits as its factorization.

2409005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481806.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2409005 is about 1552.0969686202. The cubic root of 2409005 is about 134.0538322359.

The spelling of 2409005 in words is "two million, four hundred nine thousand, five".