4406239 has 4 divisors (see below), whose sum is σ = 4422424. Its totient is φ = 4390056.

The previous prime is 4406201. The next prime is 4406251. The reversal of 4406239 is 9326044.

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

It is a cyclic number.

It is not a de Polignac number, because 4406239 - 2¹³ = 4398047 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 (4406539) 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, 7677 + ... + 8230.

It is an arithmetic number, because the mean of its divisors is an integer number (1105606).

Almost surely, 2^4406239 is an apocalyptic number.

4406239 is a deficient number, since it is larger than the sum of its proper divisors (16185).

4406239 is a wasteful number, since it uses less digits than its factorization.

4406239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16184.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 4406239 is about 2099.1043328048. The cubic root of 4406239 is about 163.9416682297.

The spelling of 4406239 in words is "four million, four hundred six thousand, two hundred thirty-nine".