163162728 has 128 divisors (see below), whose sum is σ = 483840000. Its totient is φ = 50798016.

The previous prime is 163162723. The next prime is 163162771. The reversal of 163162728 is 827261361.

163162728 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 627 + 28 = 666.

163162728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 163162692 and 163162701.

It is not an unprimeable number, because it can be changed into a prime (163162723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340393 + ... + 340871.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 2^163162728 is an apocalyptic number.

163162728 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 163162728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241920000).

163162728 is an abundant number, since it is smaller than the sum of its proper divisors (320677272).

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

163162728 is a wasteful number, since it uses less digits than its factorization.

163162728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 586 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 163162728 is about 12773.5166653510. The cubic root of 163162728 is about 546.4372780070.

It can be divided in two parts, 16316 and 2728, that added together give a square (19044 = 138²).

The spelling of 163162728 in words is "one hundred sixty-three million, one hundred sixty-two thousand, seven hundred twenty-eight".