180469220 has 48 divisors (see below), whose sum is σ = 404611200. Its totient is φ = 67415040.

The previous prime is 180469207. The next prime is 180469241. The reversal of 180469220 is 22964081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23636 + ... + 30324.

It is an arithmetic number, because the mean of its divisors is an integer number (8429400).

Almost surely, 2^180469220 is an apocalyptic number.

180469220 is a gapful number since it is divisible by the number (10) 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 180469220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202305600).

180469220 is an abundant number, since it is smaller than the sum of its proper divisors (224141980).

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

180469220 is a wasteful number, since it uses less digits than its factorization.

180469220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788 (or 6786 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 180469220 is about 13433.8832807197. The cubic root of 180469220 is about 565.1118059990. Note that the first 3 decimals are identical.

The spelling of 180469220 in words is "one hundred eighty million, four hundred sixty-nine thousand, two hundred twenty".