388489164 has 24 divisors (see below), whose sum is σ = 1035971328. Its totient is φ = 110996880.

The previous prime is 388489163. The next prime is 388489187. The reversal of 388489164 is 461984883.

It is not an unprimeable number, because it can be changed into a prime (388489163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2312352 + ... + 2312519.

It is an arithmetic number, because the mean of its divisors is an integer number (43165472).

Almost surely, 2^388489164 is an apocalyptic number.

It is an amenable number.

388489164 is an abundant number, since it is smaller than the sum of its proper divisors (647482164).

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

388489164 is a wasteful number, since it uses less digits than its factorization.

388489164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624885 (or 4624883 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The square root of 388489164 is about 19710.1284622907. The cubic root of 388489164 is about 729.6696847997.

The spelling of 388489164 in words is "three hundred eighty-eight million, four hundred eighty-nine thousand, one hundred sixty-four".