4442739 has 8 divisors (see below), whose sum is σ = 6769920. Its totient is φ = 2538696.

The previous prime is 4442689. The next prime is 4442743. The reversal of 4442739 is 9372444.

4442739 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4442739 - 2⁸ = 4442483 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

4442739 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (4442639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105759 + ... + 105800.

It is an arithmetic number, because the mean of its divisors is an integer number (846240).

Almost surely, 2^4442739 is an apocalyptic number.

4442739 is a deficient number, since it is larger than the sum of its proper divisors (2327181).

4442739 is a wasteful number, since it uses less digits than its factorization.

4442739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211569.

The product of its digits is 24192, while the sum is 33.

The square root of 4442739 is about 2107.7805863040. The cubic root of 4442739 is about 164.3931056598.

The spelling of 4442739 in words is "four million, four hundred forty-two thousand, seven hundred thirty-nine".