387012680 has 32 divisors (see below), whose sum is σ = 898871040. Its totient is φ = 149810880.

The previous prime is 387012643. The next prime is 387012713. The reversal of 387012680 is 86210783.

It is a self number, because there is not a number n which added to its sum of digits gives 387012680.

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 in 7 ways as a sum of consecutive naturals, for example, 154814 + ... + 157293.

It is an arithmetic number, because the mean of its divisors is an integer number (28089720).

Almost surely, 2^387012680 is an apocalyptic number.

It is an amenable number.

387012680 is an abundant number, since it is smaller than the sum of its proper divisors (511858360).

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

387012680 is a wasteful number, since it uses less digits than its factorization.

387012680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312149 (or 312145 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 387012680 is about 19672.6378505781. The cubic root of 387012680 is about 728.7441220042.

The spelling of 387012680 in words is "three hundred eighty-seven million, twelve thousand, six hundred eighty".