39930390608 has 10 divisors (see below), whose sum is σ = 77365131834. Its totient is φ = 19965195296.

The previous prime is 39930390607. The next prime is 39930390637. The reversal of 39930390608 is 80609303993.

It can be written as a sum of positive squares in only one way, i.e., 36163868224 + 3766522384 = 190168^2 + 61372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39930390607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1247824691 + ... + 1247824722.

Almost surely, 2^39930390608 is an apocalyptic number.

It is an amenable number.

39930390608 is a deficient number, since it is larger than the sum of its proper divisors (37434741226).

39930390608 is a wasteful number, since it uses less digits than its factorization.

39930390608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495649421 (or 2495649415 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 50.

The spelling of 39930390608 in words is "thirty-nine billion, nine hundred thirty million, three hundred ninety thousand, six hundred eight".