388476940 has 12 divisors (see below), whose sum is σ = 815801616. Its totient is φ = 155390768.

The previous prime is 388476931. The next prime is 388476941. The reversal of 388476940 is 49674883.

It is not an unprimeable number, because it can be changed into a prime (388476941) 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 3 ways as a sum of consecutive naturals, for example, 9711904 + ... + 9711943.

It is an arithmetic number, because the mean of its divisors is an integer number (67983468).

Almost surely, 2^388476940 is an apocalyptic number.

It is an amenable number.

388476940 is an abundant number, since it is smaller than the sum of its proper divisors (427324676).

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

388476940 is a wasteful number, since it uses less digits than its factorization.

388476940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19423856 (or 19423854 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 388476940 is about 19709.8183654746. The cubic root of 388476940 is about 729.6620315825.

The spelling of 388476940 in words is "three hundred eighty-eight million, four hundred seventy-six thousand, nine hundred forty".