39481939 has 8 divisors (see below), whose sum is σ = 47776608. Its totient is φ = 31850880.

The previous prime is 39481933. The next prime is 39481957. The reversal of 39481939 is 93918493.

39481939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 39481939 - 2³ = 39481931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39481931) 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, 165772 + ... + 166009.

It is an arithmetic number, because the mean of its divisors is an integer number (5972076).

Almost surely, 2^39481939 is an apocalyptic number.

39481939 is a deficient number, since it is larger than the sum of its proper divisors (8294669).

39481939 is a wasteful number, since it uses less digits than its factorization.

39481939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331805.

The product of its digits is 209952, while the sum is 46.

The square root of 39481939 is about 6283.4655246926. The cubic root of 39481939 is about 340.5123158841.

The spelling of 39481939 in words is "thirty-nine million, four hundred eighty-one thousand, nine hundred thirty-nine".