39391012 has 12 divisors (see below), whose sum is σ = 68978560. Its totient is φ = 19682856.

The previous prime is 39391007. The next prime is 39391039. The reversal of 39391012 is 21019393.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9289 + ... + 12847.

Almost surely, 2^39391012 is an apocalyptic number.

It is an amenable number.

39391012 is a deficient number, since it is larger than the sum of its proper divisors (29587548).

39391012 is a wasteful number, since it uses less digits than its factorization.

39391012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330 (or 6328 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 39391012 is about 6276.2259360224. The cubic root of 39391012 is about 340.2507147324.

The spelling of 39391012 in words is "thirty-nine million, three hundred ninety-one thousand, twelve".