4140409 has 16 divisors (see below), whose sum is σ = 5144832. Its totient is φ = 3244608.

The previous prime is 4140397. The next prime is 4140419. The reversal of 4140409 is 9040414.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4140409 - 2⁵ = 4140377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4140409.

It is not an unprimeable number, because it can be changed into a prime (4140419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15612 + ... + 15874.

It is an arithmetic number, because the mean of its divisors is an integer number (321552).

Almost surely, 2^4140409 is an apocalyptic number.

It is an amenable number.

4140409 is a deficient number, since it is larger than the sum of its proper divisors (1004423).

4140409 is a wasteful number, since it uses less digits than its factorization.

4140409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4140409 is about 2034.7994987222. The cubic root of 4140409 is about 160.5761649095.

The spelling of 4140409 in words is "four million, one hundred forty thousand, four hundred nine".