16402033 has 4 divisors (see below), whose sum is σ = 16411248. Its totient is φ = 16392820.

The previous prime is 16402031. The next prime is 16402079. The reversal of 16402033 is 33020461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16402033 - 2¹ = 16402031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16402033.

It is not an unprimeable number, because it can be changed into a prime (16402031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991 + ... + 5812.

It is an arithmetic number, because the mean of its divisors is an integer number (4102812).

Almost surely, 2^16402033 is an apocalyptic number.

It is an amenable number.

16402033 is a deficient number, since it is larger than the sum of its proper divisors (9215).

16402033 is an equidigital number, since it uses as much as digits as its factorization.

16402033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9214.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 16402033 is about 4049.9423452686. The cubic root of 16402033 is about 254.0773164508.

Adding to 16402033 its reverse (33020461), we get a palindrome (49422494).

The spelling of 16402033 in words is "sixteen million, four hundred two thousand, thirty-three".