386540808 has 32 divisors (see below), whose sum is σ = 972290400. Its totient is φ = 128055168.

The previous prime is 386540773. The next prime is 386540839. The reversal of 386540808 is 808045683.

It is a self number, because there is not a number n which added to its sum of digits gives 386540808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45493 + ... + 53316.

It is an arithmetic number, because the mean of its divisors is an integer number (30384075).

Almost surely, 2^386540808 is an apocalyptic number.

It is an amenable number.

386540808 is an abundant number, since it is smaller than the sum of its proper divisors (585749592).

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

386540808 is a wasteful number, since it uses less digits than its factorization.

386540808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98981 (or 98977 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 386540808 is about 19660.6410882250. The cubic root of 386540808 is about 728.4478235305.

The spelling of 386540808 in words is "three hundred eighty-six million, five hundred forty thousand, eight hundred eight".