16380605 has 16 divisors (see below), whose sum is σ = 21026304. Its totient is φ = 12207360.

The previous prime is 16380601. The next prime is 16380619. The reversal of 16380605 is 50608361.

It is not a de Polignac number, because 16380605 - 2² = 16380601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16380601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7820 + ... + 9690.

It is an arithmetic number, because the mean of its divisors is an integer number (1314144).

Almost surely, 2^16380605 is an apocalyptic number.

It is an amenable number.

16380605 is a deficient number, since it is larger than the sum of its proper divisors (4645699).

16380605 is a wasteful number, since it uses less digits than its factorization.

16380605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 16380605 is about 4047.2960109189. The cubic root of 16380605 is about 253.9666240478.

Adding to 16380605 its reverse (50608361), we get a palindrome (66988966).

The spelling of 16380605 in words is "sixteen million, three hundred eighty thousand, six hundred five".