39042013 has 8 divisors (see below), whose sum is σ = 42017400. Its totient is φ = 36142080.

The previous prime is 39041999. The next prime is 39042041. The reversal of 39042013 is 31024093.

It can be written as a sum of positive squares in 4 ways, for example, as 9903609 + 29138404 = 3147^2 + 5398^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39042013 - 2⁹ = 39041501 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 (39042043) 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, 17788 + ... + 19861.

It is an arithmetic number, because the mean of its divisors is an integer number (5252175).

Almost surely, 2^39042013 is an apocalyptic number.

It is an amenable number.

39042013 is a deficient number, since it is larger than the sum of its proper divisors (2975387).

39042013 is a wasteful number, since it uses less digits than its factorization.

39042013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37727.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 39042013 is about 6248.3608250484. The cubic root of 39042013 is about 339.2428740760.

The spelling of 39042013 in words is "thirty-nine million, forty-two thousand, thirteen".