4568409 has 12 divisors (see below), whose sum is σ = 6668116. Its totient is φ = 3013632.

The previous prime is 4568387. The next prime is 4568419. The reversal of 4568409 is 9048654.

It can be written as a sum of positive squares in 2 ways, for example, as 3459600 + 1108809 = 1860^2 + 1053^2 .

It is not a de Polignac number, because 4568409 - 2¹¹ = 4566361 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4568419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1744 + ... + 3489.

Almost surely, 2^4568409 is an apocalyptic number.

It is an amenable number.

4568409 is a deficient number, since it is larger than the sum of its proper divisors (2099707).

4568409 is a wasteful number, since it uses less digits than its factorization.

4568409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5336 (or 5333 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 4568409 is about 2137.3836810456. The cubic root of 4568409 is about 165.9287568675.

The spelling of 4568409 in words is "four million, five hundred sixty-eight thousand, four hundred nine".