180346 has 4 divisors (see below), whose sum is σ = 270522. Its totient is φ = 90172.

The previous prime is 180337. The next prime is 180347. The reversal of 180346 is 643081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 112225 + 68121 = 335^2 + 261^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (180347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45085 + ... + 45088.

2¹⁸⁰³⁴⁶ is an apocalyptic number.

180346 is a deficient number, since it is larger than the sum of its proper divisors (90176).

180346 is an equidigital number, since it uses as much as digits as its factorization.

180346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90175.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 180346 is about 424.6716378568. The cubic root of 180346 is about 56.4983161845.

It can be divided in two parts, 1803 and 46, that added together give a square (1849 = 43²).

The spelling of 180346 in words is "one hundred eighty thousand, three hundred forty-six".