16382009 has 16 divisors (see below), whose sum is σ = 20246400. Its totient is φ = 12939264.

The previous prime is 16381987. The next prime is 16382027. The reversal of 16382009 is 90028361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16382009 is a prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (16382209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3257 + ... + 6585.

It is an arithmetic number, because the mean of its divisors is an integer number (1265400).

Almost surely, 2^16382009 is an apocalyptic number.

16382009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16382009 is a deficient number, since it is larger than the sum of its proper divisors (3864391).

16382009 is a wasteful number, since it uses less digits than its factorization.

16382009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 16382009 is about 4047.4694563394. The cubic root of 16382009 is about 253.9738797618.

The spelling of 16382009 in words is "sixteen million, three hundred eighty-two thousand, nine".