4044739 has 4 divisors (see below), whose sum is σ = 4257640. Its totient is φ = 3831840.

The previous prime is 4044731. The next prime is 4044743. The reversal of 4044739 is 9374404.

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 4044739 - 2³ = 4044731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4044739.

It is not an unprimeable number, because it can be changed into a prime (4044731) 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, 106422 + ... + 106459.

It is an arithmetic number, because the mean of its divisors is an integer number (1064410).

Almost surely, 2^4044739 is an apocalyptic number.

4044739 is a deficient number, since it is larger than the sum of its proper divisors (212901).

4044739 is a wasteful number, since it uses less digits than its factorization.

4044739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212900.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 4044739 is about 2011.1536490283. The cubic root of 4044739 is about 159.3297351397.

The spelling of 4044739 in words is "four million, forty-four thousand, seven hundred thirty-nine".