2408909 has 4 divisors (see below), whose sum is σ = 2438016. Its totient is φ = 2379804.

The previous prime is 2408899. The next prime is 2408933. The reversal of 2408909 is 9098042.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9098042 = 2 ⋅4549021.

It is a cyclic number.

It is not a de Polignac number, because 2408909 - 2¹² = 2404813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2408969) 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, 14429 + ... + 14594.

It is an arithmetic number, because the mean of its divisors is an integer number (609504).

2^2408909 is an apocalyptic number.

It is an amenable number.

2408909 is a deficient number, since it is larger than the sum of its proper divisors (29107).

2408909 is an equidigital number, since it uses as much as digits as its factorization.

2408909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29106.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2408909 is about 1552.0660424093. The cubic root of 2408909 is about 134.0520515092.

The spelling of 2408909 in words is "two million, four hundred eight thousand, nine hundred nine".