4039749 has 12 divisors (see below), whose sum is σ = 6668896. Its totient is φ = 2308392.

The previous prime is 4039741. The next prime is 4039753. The reversal of 4039749 is 9479304.

4039749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4039749 - 2³ = 4039741 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 (4039741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31999 + ... + 32124.

Almost surely, 2^4039749 is an apocalyptic number.

It is an amenable number.

4039749 is a deficient number, since it is larger than the sum of its proper divisors (2629147).

4039749 is a wasteful number, since it uses less digits than its factorization.

4039749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64136 (or 64133 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 4039749 is about 2009.9126846707. The cubic root of 4039749 is about 159.2641864062.

The spelling of 4039749 in words is "four million, thirty-nine thousand, seven hundred forty-nine".