4001039 has 16 divisors (see below), whose sum is σ = 4896000. Its totient is φ = 3193344.

The previous prime is 4001029. The next prime is 4001059. The reversal of 4001039 is 9301004.

It is a de Polignac number, because none of the positive numbers 2^k-4001039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8687 + ... + 9135.

It is an arithmetic number, because the mean of its divisors is an integer number (306000).

Almost surely, 2^4001039 is an apocalyptic number.

4001039 is a deficient number, since it is larger than the sum of its proper divisors (894961).

4001039 is a wasteful number, since it uses less digits than its factorization.

4001039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 4001039 is about 2000.2597331347. The cubic root of 4001039 is about 158.7538482544.

The spelling of 4001039 in words is "four million, one thousand, thirty-nine".