163870384 has 10 divisors (see below), whose sum is σ = 317498900. Its totient is φ = 81935184.

The previous prime is 163870381. The next prime is 163870391. The reversal of 163870384 is 483078361.

It is not an unprimeable number, because it can be changed into a prime (163870381) 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 as a sum of consecutive naturals, namely, 5120934 + ... + 5120965.

It is an arithmetic number, because the mean of its divisors is an integer number (31749890).

Almost surely, 2^163870384 is an apocalyptic number.

It is an amenable number.

163870384 is a deficient number, since it is larger than the sum of its proper divisors (153628516).

163870384 is a wasteful number, since it uses less digits than its factorization.

163870384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10241907 (or 10241901 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 163870384 is about 12801.1868199788. The cubic root of 163870384 is about 547.2261263075.

The spelling of 163870384 in words is "one hundred sixty-three million, eight hundred seventy thousand, three hundred eighty-four".