38718290 has 16 divisors (see below), whose sum is σ = 75054168. Its totient is φ = 14295936.

The previous prime is 38718263. The next prime is 38718313. The reversal of 38718290 is 9281783.

38718290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11082241 + 27636049 = 3329^2 + 5257^2 .

It is an unprimeable number.

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, 148787 + ... + 149046.

Almost surely, 2^38718290 is an apocalyptic number.

38718290 is a deficient number, since it is larger than the sum of its proper divisors (36335878).

38718290 is a wasteful number, since it uses less digits than its factorization.

38718290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297853.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 38718290 is about 6222.4022692205. The cubic root of 38718290 is about 338.3026419996.

The spelling of 38718290 in words is "thirty-eight million, seven hundred eighteen thousand, two hundred ninety".