16199928 has 48 divisors (see below), whose sum is σ = 44506800. Its totient is φ = 5322240.

The previous prime is 16199921. The next prime is 16199971. The reversal of 16199928 is 82999161.

16199928 is a `hidden beast` number, since 1 + 619 + 9 + 9 + 28 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16199921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3528 + ... + 6696.

It is an arithmetic number, because the mean of its divisors is an integer number (927225).

Almost surely, 2^16199928 is an apocalyptic number.

16199928 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 16199928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22253400).

16199928 is an abundant number, since it is smaller than the sum of its proper divisors (28306872).

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

16199928 is a wasteful number, since it uses less digits than its factorization.

16199928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3245 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 16199928 is about 4024.9134152178. The cubic root of 16199928 is about 253.0294247310.

The spelling of 16199928 in words is "sixteen million, one hundred ninety-nine thousand, nine hundred twenty-eight".