163398528 has 192 divisors, whose sum is σ = 500432400. Its totient is φ = 51093504.

The previous prime is 163398493. The next prime is 163398533. The reversal of 163398528 is 825893361.

It is a happy number.

163398528 is a `hidden beast` number, since 1 + 6 + 33 + 98 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2238300 + ... + 2238372.

Almost surely, 2^163398528 is an apocalyptic number.

163398528 is a gapful number since it is divisible by the number (18) 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 163398528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250216200).

163398528 is an abundant number, since it is smaller than the sum of its proper divisors (337033872).

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

163398528 is a wasteful number, since it uses less digits than its factorization.

163398528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 174 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 163398528 is about 12782.7433675248. The cubic root of 163398528 is about 546.7003852558.

The spelling of 163398528 in words is "one hundred sixty-three million, three hundred ninety-eight thousand, five hundred twenty-eight".