180636 has 12 divisors (see below), whose sum is σ = 421512. Its totient is φ = 60208.

The previous prime is 180629. The next prime is 180647. The reversal of 180636 is 636081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7515 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (35126).

2¹⁸⁰⁶³⁶ is an apocalyptic number.

It is an amenable number.

180636 is an abundant number, since it is smaller than the sum of its proper divisors (240876).

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

180636 is a wasteful number, since it uses less digits than its factorization.

180636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15060 (or 15058 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 180636 is about 425.0129409794. The cubic root of 180636 is about 56.5285834435.

The spelling of 180636 in words is "one hundred eighty thousand, six hundred thirty-six".