39389868 has 48 divisors (see below), whose sum is σ = 116712960. Its totient is φ = 11254032.

The previous prime is 39389843. The next prime is 39389873. The reversal of 39389868 is 86898393.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 15 ways as a sum of consecutive naturals, for example, 25296 + ... + 26807.

It is an arithmetic number, because the mean of its divisors is an integer number (2431520).

Almost surely, 2^39389868 is an apocalyptic number.

It is an amenable number.

39389868 is an abundant number, since it is smaller than the sum of its proper divisors (77323092).

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

39389868 is a wasteful number, since it uses less digits than its factorization.

39389868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52123 (or 52115 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 39389868 is about 6276.1347977876. The cubic root of 39389868 is about 340.2474208289.

The spelling of 39389868 in words is "thirty-nine million, three hundred eighty-nine thousand, eight hundred sixty-eight".