4069405 has 8 divisors (see below), whose sum is σ = 4909752. Its totient is φ = 3237888.

The previous prime is 4069397. The next prime is 4069421. The reversal of 4069405 is 5049604.

4069405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 643204 + 3426201 = 802^2 + 1851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4069405 - 2³ = 4069397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1144 + ... + 3073.

It is an arithmetic number, because the mean of its divisors is an integer number (613719).

Almost surely, 2^4069405 is an apocalyptic number.

It is an amenable number.

4069405 is a deficient number, since it is larger than the sum of its proper divisors (840347).

4069405 is a wasteful number, since it uses less digits than its factorization.

4069405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 4069405 is about 2017.2766295181. The cubic root of 4069405 is about 159.6529587465.

The spelling of 4069405 in words is "four million, sixty-nine thousand, four hundred five".