4044409 has 4 divisors (see below), whose sum is σ = 4060404. Its totient is φ = 4028416.

The previous prime is 4044407. The next prime is 4044413. The reversal of 4044409 is 9044404.

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 3861225 + 183184 = 1965^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 4044409 - 2¹ = 4044407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4044401) 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, 7612 + ... + 8125.

It is an arithmetic number, because the mean of its divisors is an integer number (1015101).

Almost surely, 2^4044409 is an apocalyptic number.

It is an amenable number.

4044409 is a deficient number, since it is larger than the sum of its proper divisors (15995).

4044409 is a wasteful number, since it uses less digits than its factorization.

4044409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15994.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4044409 is about 2011.0716048913. The cubic root of 4044409 is about 159.3254019188.

The spelling of 4044409 in words is "four million, forty-four thousand, four hundred nine".