16163928 has 64 divisors (see below), whose sum is σ = 48988800. Its totient is φ = 4897440.

The previous prime is 16163921. The next prime is 16163929. The reversal of 16163928 is 82936161.

16163928 is a `hidden beast` number, since 1 + 616 + 39 + 2 + 8 = 666.

16163928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16163928² = 522545136778368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 16163892 and 16163901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16163921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026 + ... + 5777.

It is an arithmetic number, because the mean of its divisors is an integer number (765450).

Almost surely, 2^16163928 is an apocalyptic number.

16163928 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 16163928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24494400).

16163928 is an abundant number, since it is smaller than the sum of its proper divisors (32824872).

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

16163928 is a wasteful number, since it uses less digits than its factorization.

16163928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6829 (or 6819 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16163928 is about 4020.4387820237. The cubic root of 16163928 is about 252.8418556851.

The spelling of 16163928 in words is "sixteen million, one hundred sixty-three thousand, nine hundred twenty-eight".