180968144 has 80 divisors (see below), whose sum is σ = 411640320. Its totient is φ = 75479040.

The previous prime is 180968143. The next prime is 180968153. The reversal of 180968144 is 441869081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180968143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999734 + ... + 999914.

It is an arithmetic number, because the mean of its divisors is an integer number (5145504).

Almost surely, 2^180968144 is an apocalyptic number.

180968144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180968144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205820160).

180968144 is an abundant number, since it is smaller than the sum of its proper divisors (230672176).

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

180968144 is a wasteful number, since it uses less digits than its factorization.

180968144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 180968144 is about 13452.4400760606. The cubic root of 180968144 is about 565.6320949386.

The spelling of 180968144 in words is "one hundred eighty million, nine hundred sixty-eight thousand, one hundred forty-four".