180568442 has 8 divisors (see below), whose sum is σ = 280192500. Its totient is φ = 87170944.

The previous prime is 180568429. The next prime is 180568477. The reversal of 180568442 is 244865081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 160757041 + 19811401 = 12679^2 + 4451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 180568396 and 180568405.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1556567 + ... + 1556682.

Almost surely, 2^180568442 is an apocalyptic number.

180568442 is a deficient number, since it is larger than the sum of its proper divisors (99624058).

180568442 is a wasteful number, since it uses less digits than its factorization.

180568442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113280.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 180568442 is about 13437.5757486237. The cubic root of 180568442 is about 565.2153532054.

The spelling of 180568442 in words is "one hundred eighty million, five hundred sixty-eight thousand, four hundred forty-two".