163213044 has 48 divisors (see below), whose sum is σ = 396385920. Its totient is φ = 52205440.

The previous prime is 163213033. The next prime is 163213049. The reversal of 163213044 is 440312361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163213049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58849 + ... + 61559.

It is an arithmetic number, because the mean of its divisors is an integer number (8258040).

Almost surely, 2^163213044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163213044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198192960).

163213044 is an abundant number, since it is smaller than the sum of its proper divisors (233172876).

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

163213044 is a wasteful number, since it uses less digits than its factorization.

163213044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 163213044 is about 12775.4860572896. The cubic root of 163213044 is about 546.4934422071.

The spelling of 163213044 in words is "one hundred sixty-three million, two hundred thirteen thousand, forty-four".