4108409 has 4 divisors (see below), whose sum is σ = 4112640. Its totient is φ = 4104180.

The previous prime is 4108397. The next prime is 4108439. The reversal of 4108409 is 9048014.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9048014 = 2 ⋅4524007.

It is a cyclic number.

It is not a de Polignac number, because 4108409 - 2⁴ = 4108393 is a prime.

It is a super-2 number, since 2×4108409² = 33758049022562, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (4108439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 2^4108409 is an apocalyptic number.

It is an amenable number.

4108409 is a deficient number, since it is larger than the sum of its proper divisors (4231).

4108409 is a wasteful number, since it uses less digits than its factorization.

4108409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4108409 is about 2026.9210640772. The cubic root of 4108409 is about 160.1614126283.

The spelling of 4108409 in words is "four million, one hundred eight thousand, four hundred nine".