180840418 has 16 divisors (see below), whose sum is σ = 299977056. Its totient is φ = 81073440.

The previous prime is 180840397. The next prime is 180840419. The reversal of 180840418 is 814048081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (180840419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54696 + ... + 57907.

It is an arithmetic number, because the mean of its divisors is an integer number (18748566).

Almost surely, 2^180840418 is an apocalyptic number.

180840418 is a deficient number, since it is larger than the sum of its proper divisors (119136638).

180840418 is a wasteful number, since it uses less digits than its factorization.

180840418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112689.

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 180840418 is about 13447.6919209209. The cubic root of 180840418 is about 565.4989906126.

Adding to 180840418 its reverse (814048081), we get a palindrome (994888499).

The spelling of 180840418 in words is "one hundred eighty million, eight hundred forty thousand, four hundred eighteen".