180430445 has 16 divisors (see below), whose sum is σ = 234054912. Its totient is φ = 132736320.

The previous prime is 180430427. The next prime is 180430457. The reversal of 180430445 is 544034081.

It is not a de Polignac number, because 180430445 - 2⁸ = 180430189 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12494 + ... + 22736.

It is an arithmetic number, because the mean of its divisors is an integer number (14628432).

Almost surely, 2^180430445 is an apocalyptic number.

It is an amenable number.

180430445 is a deficient number, since it is larger than the sum of its proper divisors (53624467).

180430445 is a wasteful number, since it uses less digits than its factorization.

180430445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10532.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 180430445 is about 13432.4400240612. The cubic root of 180430445 is about 565.0713304361.

The spelling of 180430445 in words is "one hundred eighty million, four hundred thirty thousand, four hundred forty-five".