38181768 has 16 divisors (see below), whose sum is σ = 95454480. Its totient is φ = 12727248.

The previous prime is 38181733. The next prime is 38181797. The reversal of 38181768 is 86718183.

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 3 ways as a sum of consecutive naturals, for example, 795430 + ... + 795477.

It is an arithmetic number, because the mean of its divisors is an integer number (5965905).

Almost surely, 2^38181768 is an apocalyptic number.

It is an amenable number.

38181768 is an abundant number, since it is smaller than the sum of its proper divisors (57272712).

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

38181768 is a wasteful number, since it uses less digits than its factorization.

38181768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590916 (or 1590912 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 38181768 is about 6179.1397459517. The cubic root of 38181768 is about 336.7327404653.

The spelling of 38181768 in words is "thirty-eight million, one hundred eighty-one thousand, seven hundred sixty-eight".