180890030 has 16 divisors (see below), whose sum is σ = 344755440. Its totient is φ = 68099712.

The previous prime is 180889993. The next prime is 180890033. The reversal of 180890030 is 30098081.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 180889975 and 180890002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180890033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531860 + ... + 532199.

It is an arithmetic number, because the mean of its divisors is an integer number (21547215).

Almost surely, 2^180890030 is an apocalyptic number.

180890030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180890030 is a deficient number, since it is larger than the sum of its proper divisors (163865410).

180890030 is a wasteful number, since it uses less digits than its factorization.

180890030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064083.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 180890030 is about 13449.5364232378. The cubic root of 180890030 is about 565.5506991319.

The spelling of 180890030 in words is "one hundred eighty million, eight hundred ninety thousand, thirty".