39081768 has 64 divisors (see below), whose sum is σ = 109494720. Its totient is φ = 11520000.

The previous prime is 39081739. The next prime is 39081781. The reversal of 39081768 is 86718093.

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, 7768 + ... + 11768.

It is an arithmetic number, because the mean of its divisors is an integer number (1710855).

Almost surely, 2^39081768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39081768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54747360).

39081768 is an abundant number, since it is smaller than the sum of its proper divisors (70412952).

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

39081768 is a wasteful number, since it uses less digits than its factorization.

39081768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4058 (or 4054 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 39081768 is about 6251.5412499639. The cubic root of 39081768 is about 339.3579810627.

The spelling of 39081768 in words is "thirty-nine million, eighty-one thousand, seven hundred sixty-eight".