180338042 has 8 divisors (see below), whose sum is σ = 271909236. Its totient is φ = 89701632.

The previous prime is 180338033. The next prime is 180338047. The reversal of 180338042 is 240833081.

It is a happy number.

It is a Cunningham number, because it is equal to 13429²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 180338041 + 1 = 13429^2 + 1^2 .

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 = 180337996 and 180338014.

It is not an unprimeable number, because it can be changed into a prime (180338047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233213 + ... + 233984.

Almost surely, 2^180338042 is an apocalyptic number.

180338042 is a deficient number, since it is larger than the sum of its proper divisors (91571194).

180338042 is a wasteful number, since it uses less digits than its factorization.

180338042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467392.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 180338042 is about 13429.0000372329. Note that the first 4 decimals coincide. The cubic root of 180338042 is about 564.9748515185.

The spelling of 180338042 in words is "one hundred eighty million, three hundred thirty-eight thousand, forty-two".