180442 has 8 divisors (see below), whose sum is σ = 274176. Its totient is φ = 89052.

The previous prime is 180437. The next prime is 180463. The reversal of 180442 is 244081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

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, 378 + ... + 709.

It is an arithmetic number, because the mean of its divisors is an integer number (34272).

2¹⁸⁰⁴⁴² is an apocalyptic number.

180442 is a deficient number, since it is larger than the sum of its proper divisors (93734).

180442 is a wasteful number, since it uses less digits than its factorization.

180442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 180442 is about 424.7846513235. The cubic root of 180442 is about 56.5083392813.

The spelling of 180442 in words is "one hundred eighty thousand, four hundred forty-two".