38738866 has 8 divisors (see below), whose sum is σ = 59204844. Its totient is φ = 19003920.

The previous prime is 38738851. The next prime is 38738873. The reversal of 38738866 is 66883783.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38700841 + 38025 = 6221^2 + 195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182625 + ... + 182836.

Almost surely, 2^38738866 is an apocalyptic number.

38738866 is a deficient number, since it is larger than the sum of its proper divisors (20465978).

38738866 is a wasteful number, since it uses less digits than its factorization.

38738866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365516.

The product of its digits is 1161216, while the sum is 49.

The square root of 38738866 is about 6224.0554303444. The cubic root of 38738866 is about 338.3625592674.

The spelling of 38738866 in words is "thirty-eight million, seven hundred thirty-eight thousand, eight hundred sixty-six".