4039849 has 4 divisors (see below), whose sum is σ = 4407120. Its totient is φ = 3672580.

The previous prime is 4039843. The next prime is 4039873. The reversal of 4039849 is 9489304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4039849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4039843) 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, 183619 + ... + 183640.

It is an arithmetic number, because the mean of its divisors is an integer number (1101780).

Almost surely, 2^4039849 is an apocalyptic number.

It is an amenable number.

4039849 is a deficient number, since it is larger than the sum of its proper divisors (367271).

4039849 is a wasteful number, since it uses less digits than its factorization.

4039849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367270.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 4039849 is about 2009.9375612193. The cubic root of 4039849 is about 159.2655005379.

The spelling of 4039849 in words is "four million, thirty-nine thousand, eight hundred forty-nine".