180873812 has 48 divisors (see below), whose sum is σ = 396264960. Its totient is φ = 70436352.

The previous prime is 180873757. The next prime is 180873851. The reversal of 180873812 is 218378081.

It is a super-2 number, since 2×180873812² = 65430671734822688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 7253 + ... + 20355.

It is an arithmetic number, because the mean of its divisors is an integer number (8255520).

Almost surely, 2^180873812 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 180873812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198132480).

180873812 is an abundant number, since it is smaller than the sum of its proper divisors (215391148).

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

180873812 is a wasteful number, since it uses less digits than its factorization.

180873812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13160 (or 13158 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 180873812 is about 13448.9334893143. The cubic root of 180873812 is about 565.5337968269.

The spelling of 180873812 in words is "one hundred eighty million, eight hundred seventy-three thousand, eight hundred twelve".