16327728 has 60 divisors (see below), whose sum is σ = 46367568. Its totient is φ = 5362560.

The previous prime is 16327711. The next prime is 16327739. The reversal of 16327728 is 82772361.

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 = 16327692 and 16327701.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9426 + ... + 11022.

Almost surely, 2^16327728 is an apocalyptic number.

16327728 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 16327728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23183784).

16327728 is an abundant number, since it is smaller than the sum of its proper divisors (30039840).

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

16327728 is a wasteful number, since it uses less digits than its factorization.

16327728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1673 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 16327728 is about 4040.7583446675. The cubic root of 16327728 is about 253.6930592872.

The spelling of 16327728 in words is "sixteen million, three hundred twenty-seven thousand, seven hundred twenty-eight".