389276680 has 32 divisors (see below), whose sum is σ = 943248600. Its totient is φ = 143732736.

The previous prime is 389276669. The next prime is 389276683. The reversal of 389276680 is 86672983.

It can be written as a sum of positive squares in 4 ways, for example, as 132572196 + 256704484 = 11514^2 + 16022^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (389276683) 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, 373785 + ... + 374824.

Almost surely, 2^389276680 is an apocalyptic number.

It is an amenable number.

389276680 is an abundant number, since it is smaller than the sum of its proper divisors (553971920).

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

389276680 is a wasteful number, since it uses less digits than its factorization.

389276680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748633 (or 748629 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 389276680 is about 19730.0957929758. The cubic root of 389276680 is about 730.1623958467.

The spelling of 389276680 in words is "three hundred eighty-nine million, two hundred seventy-six thousand, six hundred eighty".