16433928 has 80 divisors (see below), whose sum is σ = 52620480. Its totient is φ = 4694112.

The previous prime is 16433909. The next prime is 16433941. The reversal of 16433928 is 82933461.

16433928 is a `hidden beast` number, since 1 + 643 + 3 + 9 + 2 + 8 = 666.

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 = 16433892 and 16433901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2725 + ... + 6347.

It is an arithmetic number, because the mean of its divisors is an integer number (657756).

Almost surely, 2^16433928 is an apocalyptic number.

16433928 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 16433928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26310240).

16433928 is an abundant number, since it is smaller than the sum of its proper divisors (36186552).

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

16433928 is a wasteful number, since it uses less digits than its factorization.

16433928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648 (or 3635 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 16433928 is about 4053.8781432105. The cubic root of 16433928 is about 254.2419007000.

The spelling of 16433928 in words is "sixteen million, four hundred thirty-three thousand, nine hundred twenty-eight".