163867272 has 48 divisors (see below), whose sum is σ = 428287440. Its totient is φ = 52243488.

The previous prime is 163867259. The next prime is 163867273. The reversal of 163867272 is 272768361.

It is not an unprimeable number, because it can be changed into a prime (163867273) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 6243 + ... + 19149.

It is an arithmetic number, because the mean of its divisors is an integer number (8922655).

Almost surely, 2^163867272 is an apocalyptic number.

163867272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163867272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214143720).

163867272 is an abundant number, since it is smaller than the sum of its proper divisors (264420168).

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

163867272 is a wasteful number, since it uses less digits than its factorization.

163867272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12962 (or 12935 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 163867272 is about 12801.0652681720. The cubic root of 163867272 is about 547.2226622313. Note that the first 3 decimals are identical.

The spelling of 163867272 in words is "one hundred sixty-three million, eight hundred sixty-seven thousand, two hundred seventy-two".