4044447 has 12 divisors (see below), whose sum is σ = 6373224. Its totient is φ = 2451120.

The previous prime is 4044437. The next prime is 4044449. The reversal of 4044447 is 7444404.

It is a happy number.

It is not a de Polignac number, because 4044447 - 2⁴ = 4044431 is a prime.

It is an Ulam number.

4044447 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4044447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044449) 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, 20328 + ... + 20525.

It is an arithmetic number, because the mean of its divisors is an integer number (531102).

Almost surely, 2^4044447 is an apocalyptic number.

4044447 is a deficient number, since it is larger than the sum of its proper divisors (2328777).

4044447 is a wasteful number, since it uses less digits than its factorization.

4044447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40870 (or 40867 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 4044447 is about 2011.0810525685. The cubic root of 4044447 is about 159.3259009078.

It can be divided in two parts, 404 and 4447, that added together give a triangular number (4851 = T₉₈).

The spelling of 4044447 in words is "four million, forty-four thousand, four hundred forty-seven".