39406394 has 16 divisors (see below), whose sum is σ = 61191936. Its totient is φ = 19012800.

The previous prime is 39406379. The next prime is 39406397. The reversal of 39406394 is 49360493.

39406394 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 (39406397) 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, 28274 + ... + 29634.

It is an arithmetic number, because the mean of its divisors is an integer number (3824496).

Almost surely, 2^39406394 is an apocalyptic number.

39406394 is a deficient number, since it is larger than the sum of its proper divisors (21785542).

39406394 is a wasteful number, since it uses less digits than its factorization.

39406394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 39406394 is about 6277.4512343785. The cubic root of 39406394 is about 340.2949977226.

The spelling of 39406394 in words is "thirty-nine million, four hundred six thousand, three hundred ninety-four".