180789812 has 24 divisors (see below), whose sum is σ = 368961600. Its totient is φ = 77480760.

The previous prime is 180789811. The next prime is 180789827. The reversal of 180789812 is 218987081.

It is a super-2 number, since 2×180789812² = 65369912245990688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180789811) 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, 64514 + ... + 67257.

It is an arithmetic number, because the mean of its divisors is an integer number (15373400).

Almost surely, 2^180789812 is an apocalyptic number.

It is an amenable number.

180789812 is an abundant number, since it is smaller than the sum of its proper divisors (188171788).

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

180789812 is a wasteful number, since it uses less digits than its factorization.

180789812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131796 (or 131780 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 44.

The square root of 180789812 is about 13445.8102024385. The cubic root of 180789812 is about 565.4462363444.

It can be divided in two parts, 1807 and 89812, that added together give a palindrome (91619).

The spelling of 180789812 in words is "one hundred eighty million, seven hundred eighty-nine thousand, eight hundred twelve".