16004330 has 8 divisors (see below), whose sum is σ = 28807812. Its totient is φ = 6401728.

The previous prime is 16004291. The next prime is 16004347. The reversal of 16004330 is 3340061.

It can be written as a sum of positive squares in 2 ways, for example, as 13623481 + 2380849 = 3691^2 + 1543^2 .

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

It is a super-2 number, since 2×16004330² = 512277157497800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16004299 and 16004308.

It is an unprimeable number.

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, 800207 + ... + 800226.

Almost surely, 2^16004330 is an apocalyptic number.

16004330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16004330 is a deficient number, since it is larger than the sum of its proper divisors (12803482).

16004330 is a wasteful number, since it uses less digits than its factorization.

16004330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600440.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 16004330 is about 4000.5412133860. The cubic root of 16004330 is about 252.0069390044.

Adding to 16004330 its reverse (3340061), we get a palindrome (19344391).

The spelling of 16004330 in words is "sixteen million, four thousand, three hundred thirty".