4005044 has 12 divisors (see below), whose sum is σ = 7180068. Its totient is φ = 1953600.

The previous prime is 4005019. The next prime is 4005049. The reversal of 4005044 is 4405004.

It can be written as a sum of positive squares in 2 ways, for example, as 52900 + 3952144 = 230^2 + 1988^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005049) 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, 12047 + ... + 12374.

It is an arithmetic number, because the mean of its divisors is an integer number (598339).

Almost surely, 2^4005044 is an apocalyptic number.

It is an amenable number.

4005044 is a deficient number, since it is larger than the sum of its proper divisors (3175024).

4005044 is a wasteful number, since it uses less digits than its factorization.

4005044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24466 (or 24464 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4005044 is about 2001.2606027202. The cubic root of 4005044 is about 158.8068009278.

The spelling of 4005044 in words is "four million, five thousand, forty-four".