180900234 has 12 divisors (see below), whose sum is σ = 391950546. Its totient is φ = 60300072.

The previous prime is 180900163. The next prime is 180900257. The reversal of 180900234 is 432009081.

It can be written as a sum of positive squares in only one way, i.e., 147549609 + 33350625 = 12147^2 + 5775^2 .

It is a super-2 number, since 2×180900234² = 65449789322509512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180900198 and 180900207.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 5024989 + ... + 5025024.

Almost surely, 2^180900234 is an apocalyptic number.

180900234 is an abundant number, since it is smaller than the sum of its proper divisors (211050312).

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

180900234 is a wasteful number, since it uses less digits than its factorization.

180900234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050021 (or 10050018 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 180900234 is about 13449.9157618180. The cubic root of 180900234 is about 565.5613331634.

The spelling of 180900234 in words is "one hundred eighty million, nine hundred thousand, two hundred thirty-four".