16091330 has 32 divisors (see below), whose sum is σ = 29910384. Its totient is φ = 6230016.

The previous prime is 16091321. The next prime is 16091353. The reversal of 16091330 is 3319061.

It can be written as a sum of positive squares in 8 ways, for example, as 3052009 + 13039321 = 1747^2 + 3611^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16091296 and 16091305.

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 15 ways as a sum of consecutive naturals, for example, 51254 + ... + 51566.

Almost surely, 2^16091330 is an apocalyptic number.

16091330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16091330 is a deficient number, since it is larger than the sum of its proper divisors (13819054).

16091330 is a wasteful number, since it uses less digits than its factorization.

16091330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 16091330 is about 4011.4000049858. The cubic root of 16091330 is about 252.4627530590.

The spelling of 16091330 in words is "sixteen million, ninety-one thousand, three hundred thirty".