39213538 has 16 divisors (see below), whose sum is σ = 72394560. Its totient is φ = 15512976.

The previous prime is 39213533. The next prime is 39213571. The reversal of 39213538 is 83531293.

39213538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39213533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107548 + ... + 107911.

It is an arithmetic number, because the mean of its divisors is an integer number (4524660).

Almost surely, 2^39213538 is an apocalyptic number.

39213538 is a deficient number, since it is larger than the sum of its proper divisors (33181022).

39213538 is a wasteful number, since it uses less digits than its factorization.

39213538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215481.

The product of its digits is 19440, while the sum is 34.

The square root of 39213538 is about 6262.0713825379. The cubic root of 39213538 is about 339.7389518706.

The spelling of 39213538 in words is "thirty-nine million, two hundred thirteen thousand, five hundred thirty-eight".