38850290 has 16 divisors (see below), whose sum is σ = 71078040. Its totient is φ = 15285120.

The previous prime is 38850281. The next prime is 38850293. The reversal of 38850290 is 9205883.

38850290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 6233²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 20948929 + 17901361 = 4577^2 + 4231^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38850290.

It is not an unprimeable number, because it can be changed into a prime (38850293) 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 7 ways as a sum of consecutive naturals, for example, 31235 + ... + 32454.

Almost surely, 2^38850290 is an apocalyptic number.

38850290 is a deficient number, since it is larger than the sum of its proper divisors (32227750).

38850290 is a wasteful number, since it uses less digits than its factorization.

38850290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63757.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 38850290 is about 6233.0000802182. Note that the first 4 decimals coincide. The cubic root of 38850290 is about 338.6866577280.

The spelling of 38850290 in words is "thirty-eight million, eight hundred fifty thousand, two hundred ninety".