163568028 has 96 divisors (see below), whose sum is σ = 429004800. Its totient is φ = 48165120.

The previous prime is 163568003. The next prime is 163568051. The reversal of 163568028 is 820865361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 720451 + ... + 720677.

It is an arithmetic number, because the mean of its divisors is an integer number (4468800).

Almost surely, 2^163568028 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 163568028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214502400).

163568028 is an abundant number, since it is smaller than the sum of its proper divisors (265436772).

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

163568028 is a wasteful number, since it uses less digits than its factorization.

163568028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 163568028 is about 12789.3716812047. The cubic root of 163568028 is about 546.8893581776.

The spelling of 163568028 in words is "one hundred sixty-three million, five hundred sixty-eight thousand, twenty-eight".