39766138 has 4 divisors (see below), whose sum is σ = 59649210. Its totient is φ = 19883068.

The previous prime is 39766127. The next prime is 39766141. The reversal of 39766138 is 83166793.

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., 38850289 + 915849 = 6233^2 + 957^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39766094 and 39766103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9941533 + ... + 9941536.

Almost surely, 2^39766138 is an apocalyptic number.

39766138 is a deficient number, since it is larger than the sum of its proper divisors (19883072).

39766138 is a wasteful number, since it uses less digits than its factorization.

39766138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19883071.

The product of its digits is 163296, while the sum is 43.

The square root of 39766138 is about 6306.0398032363. The cubic root of 39766138 is about 341.3273888718.

The spelling of 39766138 in words is "thirty-nine million, seven hundred sixty-six thousand, one hundred thirty-eight".