180740220 has 24 divisors (see below), whose sum is σ = 506072784. Its totient is φ = 48197376.

The previous prime is 180740213. The next prime is 180740291. The reversal of 180740220 is 22047081.

180740220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506109 + ... + 1506228.

It is an arithmetic number, because the mean of its divisors is an integer number (21086366).

Almost surely, 2^180740220 is an apocalyptic number.

180740220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180740220 is an abundant number, since it is smaller than the sum of its proper divisors (325332564).

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

180740220 is a wasteful number, since it uses less digits than its factorization.

180740220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012349 (or 3012347 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 180740220 is about 13443.9659327149. The cubic root of 180740220 is about 565.3945295698.

The spelling of 180740220 in words is "one hundred eighty million, seven hundred forty thousand, two hundred twenty".