180304680 has 128 divisors (see below), whose sum is σ = 587980800. Its totient is φ = 44064000.

The previous prime is 180304603. The next prime is 180304727. The reversal of 180304680 is 86403081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69405 + ... + 71955.

It is an arithmetic number, because the mean of its divisors is an integer number (4593600).

Almost surely, 2^180304680 is an apocalyptic number.

180304680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180304680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293990400).

180304680 is an abundant number, since it is smaller than the sum of its proper divisors (407676120).

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

180304680 is a wasteful number, since it uses less digits than its factorization.

180304680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 180304680 is about 13427.7578172977. The cubic root of 180304680 is about 564.9400098157.

The spelling of 180304680 in words is "one hundred eighty million, three hundred four thousand, six hundred eighty".