4044436 has 24 divisors (see below), whose sum is σ = 8176896. Its totient is φ = 1729920.

The previous prime is 4044431. The next prime is 4044437. The reversal of 4044436 is 6344404.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4044436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1956 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (340704).

Almost surely, 2^4044436 is an apocalyptic number.

It is an amenable number.

4044436 is an abundant number, since it is smaller than the sum of its proper divisors (4132460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4044436 is a wasteful number, since it uses less digits than its factorization.

4044436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439 (or 5437 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 4044436 is about 2011.0783177191. The cubic root of 4044436 is about 159.3257564639.

Subtracting 4044436 from its reverse (6344404), we obtain a cube (2299968 = 132³).

The spelling of 4044436 in words is "four million, forty-four thousand, four hundred thirty-six".