163286928 has 200 divisors, whose sum is σ = 554547840. Its totient is φ = 45411840.

The previous prime is 163286927. The next prime is 163286933. The reversal of 163286928 is 829682361.

163286928 is a `hidden beast` number, since 1 + 632 + 8 + 6 + 9 + 2 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (163286927) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 371733 + ... + 372171.

Almost surely, 2^163286928 is an apocalyptic number.

163286928 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 163286928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277273920).

163286928 is an abundant number, since it is smaller than the sum of its proper divisors (391260912).

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

163286928 is a wasteful number, since it uses less digits than its factorization.

163286928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 492 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 163286928 is about 12778.3773617780. The cubic root of 163286928 is about 546.5758927869.

The spelling of 163286928 in words is "one hundred sixty-three million, two hundred eighty-six thousand, nine hundred twenty-eight".