181488 has 40 divisors (see below), whose sum is σ = 496000. Its totient is φ = 57024.

The previous prime is 181459. The next prime is 181499. The reversal of 181488 is 884181.

181488 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

181488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813 + ... + 1011.

It is an arithmetic number, because the mean of its divisors is an integer number (12400).

2¹⁸¹⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248000).

181488 is an abundant number, since it is smaller than the sum of its proper divisors (314512).

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

181488 is a wasteful number, since it uses less digits than its factorization.

181488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 223 counting only the distinct ones).

The product of its digits is 2048, while the sum is 30.

The square root of 181488 is about 426.0140842742. The cubic root of 181488 is about 56.6173195924.

The spelling of 181488 in words is "one hundred eighty-one thousand, four hundred eighty-eight".