180493986 has 32 divisors (see below), whose sum is σ = 367637760. Its totient is φ = 59065344.

The previous prime is 180493979. The next prime is 180494003. The reversal of 180493986 is 689394081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90496 + ... + 92468.

It is an arithmetic number, because the mean of its divisors is an integer number (11488680).

Almost surely, 2^180493986 is an apocalyptic number.

180493986 is an abundant number, since it is smaller than the sum of its proper divisors (187143774).

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

180493986 is a wasteful number, since it uses less digits than its factorization.

180493986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 180493986 is about 13434.8050227757. The cubic root of 180493986 is about 565.1376551324.

The spelling of 180493986 in words is "one hundred eighty million, four hundred ninety-three thousand, nine hundred eighty-six".