39446979384 has 32 divisors (see below), whose sum is σ = 104418475920. Its totient is φ = 12375522816.

The previous prime is 39446979361. The next prime is 39446979419. The reversal of 39446979384 is 48397964493.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48341479 + ... + 48342294.

Almost surely, 2^39446979384 is an apocalyptic number.

39446979384 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

39446979384 is an abundant number, since it is smaller than the sum of its proper divisors (64971496536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39446979384 is a wasteful number, since it uses less digits than its factorization.

39446979384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96683799 (or 96683795 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 66.

The spelling of 39446979384 in words is "thirty-nine billion, four hundred forty-six million, nine hundred seventy-nine thousand, three hundred eighty-four".