38765290 has 24 divisors (see below), whose sum is σ = 70866180. Its totient is φ = 15267840.

The previous prime is 38765273. The next prime is 38765297. The reversal of 38765290 is 9256783.

38765290 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 2 ways, for example, as 38155329 + 609961 = 6177^2 + 781^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38765297) 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 11 ways as a sum of consecutive naturals, for example, 50026 + ... + 50794.

Almost surely, 2^38765290 is an apocalyptic number.

38765290 is a deficient number, since it is larger than the sum of its proper divisors (32100890).

38765290 is an equidigital number, since it uses as much as digits as its factorization.

38765290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 38765290 is about 6226.1778002238. The cubic root of 38765290 is about 338.4394747882.

The spelling of 38765290 in words is "thirty-eight million, seven hundred sixty-five thousand, two hundred ninety".