4140039 has 4 divisors (see below), whose sum is σ = 5520056. Its totient is φ = 2760024.

The previous prime is 4140029. The next prime is 4140047. The reversal of 4140039 is 9300414.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4140039 - 2¹⁷ = 4008967 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4139997 and 4140024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140029) 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, 690004 + ... + 690009.

It is an arithmetic number, because the mean of its divisors is an integer number (1380014).

Almost surely, 2^4140039 is an apocalyptic number.

4140039 is a deficient number, since it is larger than the sum of its proper divisors (1380017).

4140039 is a wasteful number, since it uses less digits than its factorization.

4140039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380016.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4140039 is about 2034.7085786422. The cubic root of 4140039 is about 160.5713815696.

The spelling of 4140039 in words is "four million, one hundred forty thousand, thirty-nine".