163425328 has 40 divisors (see below), whose sum is σ = 350602560. Its totient is φ = 73170240.

The previous prime is 163425323. The next prime is 163425329. The reversal of 163425328 is 823524361.

163425328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 163425293 and 163425302.

It is not an unprimeable number, because it can be changed into a prime (163425323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4863 + ... + 18721.

It is an arithmetic number, because the mean of its divisors is an integer number (8765064).

Almost surely, 2^163425328 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 163425328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175301280).

163425328 is an abundant number, since it is smaller than the sum of its proper divisors (187177232).

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

163425328 is a wasteful number, since it uses less digits than its factorization.

163425328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945 (or 13939 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 163425328 is about 12783.7916128197. The cubic root of 163425328 is about 546.7302728554.

Adding to 163425328 its reverse (823524361), we get a palindrome (986949689).

It can be divided in two parts, 1634 and 25328, that added together give a palindrome (26962).

The spelling of 163425328 in words is "one hundred sixty-three million, four hundred twenty-five thousand, three hundred twenty-eight".