4128039 has 12 divisors (see below), whose sum is σ = 5980936. Its totient is φ = 2743632.

The previous prime is 4128031. The next prime is 4128041. The reversal of 4128039 is 9308214.

It is not a de Polignac number, because 4128039 - 2³ = 4128031 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 (4128031) 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, 4269 + ... + 5145.

Almost surely, 2^4128039 is an apocalyptic number.

4128039 is a deficient number, since it is larger than the sum of its proper divisors (1852897).

4128039 is a wasteful number, since it uses less digits than its factorization.

4128039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 1403 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4128039 is about 2031.7576134963. The cubic root of 4128039 is about 160.4160914655.

The spelling of 4128039 in words is "four million, one hundred twenty-eight thousand, thirty-nine".