388870408 has 32 divisors (see below), whose sum is σ = 741908160. Its totient is φ = 191047360.

The previous prime is 388870379. The next prime is 388870409. The reversal of 388870408 is 804078883.

It is not an unprimeable number, because it can be changed into a prime (388870409) 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, 196110 + ... + 198082.

It is an arithmetic number, because the mean of its divisors is an integer number (23184630).

Almost surely, 2^388870408 is an apocalyptic number.

It is an amenable number.

388870408 is a deficient number, since it is larger than the sum of its proper divisors (353037752).

388870408 is a wasteful number, since it uses less digits than its factorization.

388870408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 46.

The square root of 388870408 is about 19719.7973620420. The cubic root of 388870408 is about 729.9082939782.

The spelling of 388870408 in words is "three hundred eighty-eight million, eight hundred seventy thousand, four hundred eight".