180396 has 18 divisors (see below), whose sum is σ = 456092. Its totient is φ = 60120.

The previous prime is 180391. The next prime is 180413. The reversal of 180396 is 693081.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (180391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2470 + ... + 2541.

2¹⁸⁰³⁹⁶ is an apocalyptic number.

It is an amenable number.

180396 is an abundant number, since it is smaller than the sum of its proper divisors (275696).

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

180396 is a wasteful number, since it uses less digits than its factorization.

180396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021 (or 5016 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 180396 is about 424.7305027897. The cubic root of 180396 is about 56.5035369911.

It can be divided in two parts, 180 and 396, that added together give a square (576 = 24²).

The spelling of 180396 in words is "one hundred eighty thousand, three hundred ninety-six".