163943382 has 8 divisors (see below), whose sum is σ = 327886776. Its totient is φ = 54647792.

The previous prime is 163943371. The next prime is 163943389. The reversal of 163943382 is 283349361.

It is a sphenic number, since it is the product of 3 distinct primes.

163943382 is an admirable number.

It is a super-4 number, since 4×163943382⁴ (a number of 34 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163943382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163943389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13661943 + ... + 13661954.

It is an arithmetic number, because the mean of its divisors is an integer number (40985847).

Almost surely, 2^163943382 is an apocalyptic number.

163943382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

163943382 is a wasteful number, since it uses less digits than its factorization.

163943382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27323902.

The product of its digits is 93312, while the sum is 39.

The square root of 163943382 is about 12804.0377225311. The cubic root of 163943382 is about 547.3073703609.

The spelling of 163943382 in words is "one hundred sixty-three million, nine hundred forty-three thousand, three hundred eighty-two".