4029939 has 8 divisors (see below), whose sum is σ = 5970320. Its totient is φ = 2686608.

The previous prime is 4029937. The next prime is 4029943. The reversal of 4029939 is 9399204.

It is not a de Polignac number, because 4029939 - 2¹ = 4029937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4029937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74602 + ... + 74655.

It is an arithmetic number, because the mean of its divisors is an integer number (746290).

Almost surely, 2^4029939 is an apocalyptic number.

4029939 is a deficient number, since it is larger than the sum of its proper divisors (1940381).

4029939 is a wasteful number, since it uses less digits than its factorization.

4029939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149266 (or 149260 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 4029939 is about 2007.4707967988. The cubic root of 4029939 is about 159.1351645241.

The spelling of 4029939 in words is "four million, twenty-nine thousand, nine hundred thirty-nine".