16180730 has 16 divisors (see below), whose sum is σ = 30392064. Its totient is φ = 6190800.

The previous prime is 16180721. The next prime is 16180739. The reversal of 16180730 is 3708161.

It is an interprime number because it is at equal distance from previous prime (16180721) and next prime (16180739).

It is a self number, because there is not a number n which added to its sum of digits gives 16180730.

It is not an unprimeable number, because it can be changed into a prime (16180739) 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 7 ways as a sum of consecutive naturals, for example, 34946 + ... + 35405.

It is an arithmetic number, because the mean of its divisors is an integer number (1899504).

Almost surely, 2^16180730 is an apocalyptic number.

16180730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16180730 is a deficient number, since it is larger than the sum of its proper divisors (14211334).

16180730 is a wasteful number, since it uses less digits than its factorization.

16180730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70381.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 16180730 is about 4022.5278122096. The cubic root of 16180730 is about 252.9294329482.

Adding to 16180730 its reverse (3708161), we get a palindrome (19888891).

The spelling of 16180730 in words is "sixteen million, one hundred eighty thousand, seven hundred thirty".