39869494 has 16 divisors (see below), whose sum is σ = 68428800. Its totient is φ = 17066664.

The previous prime is 39869477. The next prime is 39869527. The reversal of 39869494 is 49496893.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 21787 + ... + 23545.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 2^39869494 is an apocalyptic number.

39869494 is a deficient number, since it is larger than the sum of its proper divisors (28559306).

39869494 is a wasteful number, since it uses less digits than its factorization.

39869494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387.

The product of its digits is 1679616, while the sum is 52.

The square root of 39869494 is about 6314.2294858518. The cubic root of 39869494 is about 341.6228472324.

The spelling of 39869494 in words is "thirty-nine million, eight hundred sixty-nine thousand, four hundred ninety-four".