16380318 has 16 divisors (see below), whose sum is σ = 34485120. Its totient is φ = 5172696.

The previous prime is 16380317. The next prime is 16380349. The reversal of 16380318 is 81308361.

It is a super-2 number, since 2×16380318² = 536629635562248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16380313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71730 + ... + 71957.

It is an arithmetic number, because the mean of its divisors is an integer number (2155320).

Almost surely, 2^16380318 is an apocalyptic number.

16380318 is an abundant number, since it is smaller than the sum of its proper divisors (18104802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16380318 is a wasteful number, since it uses less digits than its factorization.

16380318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143711.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16380318 is about 4047.2605549927. The cubic root of 16380318 is about 253.9651408131.

Adding to 16380318 its reverse (81308361), we get a palindrome (97688679).

The spelling of 16380318 in words is "sixteen million, three hundred eighty thousand, three hundred eighteen".