39680766 has 20 divisors (see below), whose sum is σ = 88914672. Its totient is φ = 13226868.

The previous prime is 39680731. The next prime is 39680777. The reversal of 39680766 is 66708693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 122310 + ... + 122633.

Almost surely, 2^39680766 is an apocalyptic number.

39680766 is an abundant number, since it is smaller than the sum of its proper divisors (49233906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39680766 is a wasteful number, since it uses less digits than its factorization.

39680766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244957 (or 244948 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 39680766 is about 6299.2671002268. The cubic root of 39680766 is about 341.0829541076.

The spelling of 39680766 in words is "thirty-nine million, six hundred eighty thousand, seven hundred sixty-six".