180945330 has 32 divisors (see below), whose sum is σ = 441633600. Its totient is φ = 47433792.

The previous prime is 180945311. The next prime is 180945361. The reversal of 180945330 is 33549081.

It is a junction number, because it is equal to n+sod(n) for n = 180945291 and 180945300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49345 + ... + 52884.

It is an arithmetic number, because the mean of its divisors is an integer number (13801050).

Almost surely, 2^180945330 is an apocalyptic number.

180945330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180945330 is an abundant number, since it is smaller than the sum of its proper divisors (260688270).

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

180945330 is a wasteful number, since it uses less digits than its factorization.

180945330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102298.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 180945330 is about 13451.5920990788. The cubic root of 180945330 is about 565.6083248750.

The spelling of 180945330 in words is "one hundred eighty million, nine hundred forty-five thousand, three hundred thirty".