180404812 has 24 divisors (see below), whose sum is σ = 361589760. Its totient is φ = 77149200.

The previous prime is 180404761. The next prime is 180404813. The reversal of 180404812 is 218404081.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (180404813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6687 + ... + 20137.

It is an arithmetic number, because the mean of its divisors is an integer number (15066240).

Almost surely, 2^180404812 is an apocalyptic number.

It is an amenable number.

180404812 is an abundant number, since it is smaller than the sum of its proper divisors (181184948).

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

180404812 is a wasteful number, since it uses less digits than its factorization.

180404812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941 (or 13939 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 180404812 is about 13431.4858448349. The cubic root of 180404812 is about 565.0445700606.

Adding to 180404812 its reverse (218404081), we get a palindrome (398808893).

The spelling of 180404812 in words is "one hundred eighty million, four hundred four thousand, eight hundred twelve".