16428433 has 8 divisors (see below), whose sum is σ = 18843968. Its totient is φ = 14030064.

The previous prime is 16428403. The next prime is 16428437. The reversal of 16428433 is 33482461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16428433 - 2¹⁷ = 16297361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16428395 and 16428404.

It is not an unprimeable number, because it can be changed into a prime (16428437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2166 + ... + 6127.

It is an arithmetic number, because the mean of its divisors is an integer number (2355496).

Almost surely, 2^16428433 is an apocalyptic number.

It is an amenable number.

16428433 is a deficient number, since it is larger than the sum of its proper divisors (2415535).

16428433 is an equidigital number, since it uses as much as digits as its factorization.

16428433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8583.

The product of its digits is 13824, while the sum is 31.

The square root of 16428433 is about 4053.2003404717. The cubic root of 16428433 is about 254.2135606508.

It can be divided in two parts, 16428 and 433, that added together give a palindrome (16861).

The spelling of 16428433 in words is "sixteen million, four hundred twenty-eight thousand, four hundred thirty-three".