39942939074 has 8 divisors (see below), whose sum is σ = 59918897340. Its totient is φ = 19969973296.

The previous prime is 39942939013. The next prime is 39942939131. The reversal of 39942939074 is 47093924993.

It can be written as a sum of positive squares in 2 ways, for example, as 38190930625 + 1752008449 = 195425^2 + 41857^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714449 + ... + 768324.

Almost surely, 2^39942939074 is an apocalyptic number.

39942939074 is a deficient number, since it is larger than the sum of its proper divisors (19975958266).

39942939074 is a wasteful number, since it uses less digits than its factorization.

39942939074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496244.

The product of its (nonzero) digits is 13226976, while the sum is 59.

The spelling of 39942939074 in words is "thirty-nine billion, nine hundred forty-two million, nine hundred thirty-nine thousand, seventy-four".