180722304 has 192 divisors, whose sum is σ = 604443840. Its totient is φ = 50761728.

The previous prime is 180722303. The next prime is 180722309. The reversal of 180722304 is 403227081.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (180722303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 588519 + ... + 588825.

It is an arithmetic number, because the mean of its divisors is an integer number (3148145).

Almost surely, 2^180722304 is an apocalyptic number.

180722304 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 180722304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302221920).

180722304 is an abundant number, since it is smaller than the sum of its proper divisors (423721536).

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

180722304 is a wasteful number, since it uses less digits than its factorization.

180722304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 180722304 is about 13443.2995949655. The cubic root of 180722304 is about 565.3758472439.

Adding to 180722304 its reverse (403227081), we get a palindrome (583949385).

The spelling of 180722304 in words is "one hundred eighty million, seven hundred twenty-two thousand, three hundred four".