386587540 has 12 divisors (see below), whose sum is σ = 811833876. Its totient is φ = 154635008.

The previous prime is 386587517. The next prime is 386587541. The reversal of 386587540 is 45785683.

It can be written as a sum of positive squares in 2 ways, for example, as 192765456 + 193822084 = 13884^2 + 13922^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386587541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9664669 + ... + 9664708.

It is an arithmetic number, because the mean of its divisors is an integer number (67652823).

Almost surely, 2^386587540 is an apocalyptic number.

It is an amenable number.

386587540 is an abundant number, since it is smaller than the sum of its proper divisors (425246336).

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

386587540 is a wasteful number, since it uses less digits than its factorization.

386587540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19329386 (or 19329384 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 386587540 is about 19661.8295181298. The cubic root of 386587540 is about 728.4771783025.

The spelling of 386587540 in words is "three hundred eighty-six million, five hundred eighty-seven thousand, five hundred forty".