180493918 has 16 divisors (see below), whose sum is σ = 303337584. Its totient is φ = 79824960.

The previous prime is 180493909. The next prime is 180493979. The reversal of 180493918 is 819394081.

180493918 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110055 + ... + 111682.

It is an arithmetic number, because the mean of its divisors is an integer number (18958599).

Almost surely, 2^180493918 is an apocalyptic number.

180493918 is a deficient number, since it is larger than the sum of its proper divisors (122843666).

180493918 is a wasteful number, since it uses less digits than its factorization.

180493918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221787.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 180493918 is about 13434.8024920354. The cubic root of 180493918 is about 565.1375841617.

The spelling of 180493918 in words is "one hundred eighty million, four hundred ninety-three thousand, nine hundred eighteen".