163388 has 6 divisors (see below), whose sum is σ = 285936. Its totient is φ = 81692.

The previous prime is 163367. The next prime is 163393. The reversal of 163388 is 883361.

It is a self number, because there is not a number n which added to its sum of digits gives 163388.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20420 + ... + 20427.

It is an arithmetic number, because the mean of its divisors is an integer number (47656).

2¹⁶³³⁸⁸ is an apocalyptic number.

It is an amenable number.

163388 is a deficient number, since it is larger than the sum of its proper divisors (122548).

163388 is a wasteful number, since it uses less digits than its factorization.

163388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40851 (or 40849 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 163388 is about 404.2128152347. The cubic root of 163388 is about 54.6688643442.

The spelling of 163388 in words is "one hundred sixty-three thousand, three hundred eighty-eight".