38866634 has 4 divisors (see below), whose sum is σ = 58299954. Its totient is φ = 19433316.

The previous prime is 38866621. The next prime is 38866643. The reversal of 38866634 is 43666883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21669025 + 17197609 = 4655^2 + 4147^2 .

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 9716657 + ... + 9716660.

Almost surely, 2^38866634 is an apocalyptic number.

38866634 is a deficient number, since it is larger than the sum of its proper divisors (19433320).

38866634 is a wasteful number, since it uses less digits than its factorization.

38866634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19433319.

The product of its digits is 497664, while the sum is 44.

The square root of 38866634 is about 6234.3110284938. The cubic root of 38866634 is about 338.7341453072.

The spelling of 38866634 in words is "thirty-eight million, eight hundred sixty-six thousand, six hundred thirty-four".