180940 has 24 divisors (see below), whose sum is σ = 388080. Its totient is φ = 70848.

The previous prime is 180907. The next prime is 180949. The reversal of 180940 is 49081.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (180949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606 + ... + 1714.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

2¹⁸⁰⁹⁴⁰ is an apocalyptic number.

180940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180940 is an abundant number, since it is smaller than the sum of its proper divisors (207140).

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

180940 is a wasteful number, since it uses less digits than its factorization.

180940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 180940 is about 425.3704268047. The cubic root of 180940 is about 56.5602771223.

It can be divided in two parts, 1809 and 40, that added together give a square (1849 = 43²).

The spelling of 180940 in words is "one hundred eighty thousand, nine hundred forty".