4080209 has 4 divisors (see below), whose sum is σ = 4663104. Its totient is φ = 3497316.

The previous prime is 4080199. The next prime is 4080217. The reversal of 4080209 is 9020804.

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 4080209 - 2¹² = 4076113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4080239) 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, 291437 + ... + 291450.

It is an arithmetic number, because the mean of its divisors is an integer number (1165776).

Almost surely, 2^4080209 is an apocalyptic number.

It is an amenable number.

4080209 is a deficient number, since it is larger than the sum of its proper divisors (582895).

4080209 is an equidigital number, since it uses as much as digits as its factorization.

4080209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582894.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 4080209 is about 2019.9527222190. The cubic root of 4080209 is about 159.7941232267.

The spelling of 4080209 in words is "four million, eighty thousand, two hundred nine".