180027684 has 60 divisors (see below), whose sum is σ = 471924684. Its totient is φ = 59844096.

The previous prime is 180027619. The next prime is 180027689. The reversal of 180027684 is 486720081.

It can be written as a sum of positive squares in 2 ways, for example, as 51840000 + 128187684 = 7200^2 + 11322^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (180027689) 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 19 ways as a sum of consecutive naturals, for example, 191664 + ... + 192600.

Almost surely, 2^180027684 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 180027684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235962342).

180027684 is an abundant number, since it is smaller than the sum of its proper divisors (291897000).

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

180027684 is a wasteful number, since it uses less digits than its factorization.

180027684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546 (or 1535 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 180027684 is about 13417.4395470969. The cubic root of 180027684 is about 564.6505621130.

The spelling of 180027684 in words is "one hundred eighty million, twenty-seven thousand, six hundred eighty-four".