4044644 has 18 divisors (see below), whose sum is σ = 7472934. Its totient is φ = 1915200.

The previous prime is 4044643. The next prime is 4044661. The reversal of 4044644 is 4464404.

4044644 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3467044 + 577600 = 1862^2 + 760^2 .

It is not an unprimeable number, because it can be changed into a prime (4044641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (415163).

Almost surely, 2^4044644 is an apocalyptic number.

It is an amenable number.

4044644 is a deficient number, since it is larger than the sum of its proper divisors (3428290).

4044644 is a wasteful number, since it uses less digits than its factorization.

4044644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2822 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 4044644 is about 2011.1300306047. The cubic root of 4044644 is about 159.3284877215.

The spelling of 4044644 in words is "four million, forty-four thousand, six hundred forty-four".