180519828 has 12 divisors (see below), whose sum is σ = 421212960. Its totient is φ = 60173272.

The previous prime is 180519827. The next prime is 180519839. The reversal of 180519828 is 828915081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×180519828² = 65174816602299168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 180519828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180519827) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7521648 + ... + 7521671.

It is an arithmetic number, because the mean of its divisors is an integer number (35101080).

Almost surely, 2^180519828 is an apocalyptic number.

It is an amenable number.

180519828 is an abundant number, since it is smaller than the sum of its proper divisors (240693132).

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

180519828 is a wasteful number, since it uses less digits than its factorization.

180519828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043326 (or 15043324 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 180519828 is about 13435.7667440307. The cubic root of 180519828 is about 565.1646248036.

The spelling of 180519828 in words is "one hundred eighty million, five hundred nineteen thousand, eight hundred twenty-eight".