180479784 has 96 divisors (see below), whose sum is σ = 489935520. Its totient is φ = 55354752.

The previous prime is 180479779. The next prime is 180479791. The reversal of 180479784 is 487974081.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 320287 + ... + 320849.

It is an arithmetic number, because the mean of its divisors is an integer number (5103495).

Almost surely, 2^180479784 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 180479784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244967760).

180479784 is an abundant number, since it is smaller than the sum of its proper divisors (309455736).

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

180479784 is a wasteful number, since it uses less digits than its factorization.

180479784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 180479784 is about 13434.2764598619. The cubic root of 180479784 is about 565.1228323015.

The spelling of 180479784 in words is "one hundred eighty million, four hundred seventy-nine thousand, seven hundred eighty-four".