4059409 has 4 divisors (see below), whose sum is σ = 4068900. Its totient is φ = 4049920.

The previous prime is 4059403. The next prime is 4059439. The reversal of 4059409 is 9049504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3504384 + 555025 = 1872^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 4059409 - 2⁹ = 4058897 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4059403) 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, 4072 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (1017225).

Almost surely, 2^4059409 is an apocalyptic number.

It is an amenable number.

4059409 is a deficient number, since it is larger than the sum of its proper divisors (9491).

4059409 is an equidigital number, since it uses as much as digits as its factorization.

4059409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 4059409 is about 2014.7975084360. The cubic root of 4059409 is about 159.5221288532.

The spelling of 4059409 in words is "four million, fifty-nine thousand, four hundred nine".