180538722 has 96 divisors (see below), whose sum is σ = 506862720. Its totient is φ = 45100800.

The previous prime is 180538697. The next prime is 180538727. The reversal of 180538722 is 227835081.

It is not an unprimeable number, because it can be changed into a prime (180538727) 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 47 ways as a sum of consecutive naturals, for example, 28222 + ... + 34022.

It is an arithmetic number, because the mean of its divisors is an integer number (5279820).

Almost surely, 2^180538722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180538722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253431360).

180538722 is an abundant number, since it is smaller than the sum of its proper divisors (326323998).

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

180538722 is a wasteful number, since it uses less digits than its factorization.

180538722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848 (or 5845 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 180538722 is about 13436.4698488852. The cubic root of 180538722 is about 565.1843416551.

The spelling of 180538722 in words is "one hundred eighty million, five hundred thirty-eight thousand, seven hundred twenty-two".