180321876 has 120 divisors (see below), whose sum is σ = 551566400. Its totient is φ = 50322384.

The previous prime is 180321871. The next prime is 180321887. The reversal of 180321876 is 678123081.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 180321876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180321871) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4193511 + ... + 4193553.

Almost surely, 2^180321876 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 180321876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275783200).

180321876 is an abundant number, since it is smaller than the sum of its proper divisors (371244524).

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

180321876 is an frugal number, since it uses more digits than its factorization.

180321876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 180321876 is about 13428.3981174226. The cubic root of 180321876 is about 564.9579690455.

The spelling of 180321876 in words is "one hundred eighty million, three hundred twenty-one thousand, eight hundred seventy-six".