387537680 has 40 divisors (see below), whose sum is σ = 948451200. Its totient is φ = 146855808.

The previous prime is 387537679. The next prime is 387537721. The reversal of 387537680 is 86735783.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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, 125960 + ... + 128999.

It is an arithmetic number, because the mean of its divisors is an integer number (23711280).

Almost surely, 2^387537680 is an apocalyptic number.

It is an amenable number.

387537680 is an abundant number, since it is smaller than the sum of its proper divisors (560913520).

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

387537680 is a wasteful number, since it uses less digits than its factorization.

387537680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254991 (or 254985 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 387537680 is about 19685.9767347216. The cubic root of 387537680 is about 729.0734977703.

The spelling of 387537680 in words is "three hundred eighty-seven million, five hundred thirty-seven thousand, six hundred eighty".