16419433 has 8 divisors (see below), whose sum is σ = 17546760. Its totient is φ = 15310080.

The previous prime is 16419419. The next prime is 16419451. The reversal of 16419433 is 33491461.

It can be written as a sum of positive squares in 4 ways, for example, as 11343424 + 5076009 = 3368^2 + 2253^2 .

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 16419433 - 2²¹ = 14322281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16419395 and 16419404.

It is not an unprimeable number, because it can be changed into a prime (16413433) 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 7 ways as a sum of consecutive naturals, for example, 2578 + ... + 6283.

It is an arithmetic number, because the mean of its divisors is an integer number (2193345).

Almost surely, 2^16419433 is an apocalyptic number.

It is an amenable number.

16419433 is a deficient number, since it is larger than the sum of its proper divisors (1127327).

16419433 is a wasteful number, since it uses less digits than its factorization.

16419433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8987.

The product of its digits is 7776, while the sum is 31.

The square root of 16419433 is about 4052.0899545790. The cubic root of 16419433 is about 254.1671301732.

The spelling of 16419433 in words is "sixteen million, four hundred nineteen thousand, four hundred thirty-three".