180349618 has 16 divisors (see below), whose sum is σ = 278316864. Its totient is φ = 87585840.

The previous prime is 180349591. The next prime is 180349633. The reversal of 180349618 is 816943081.

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, 49371 + ... + 52897.

It is an arithmetic number, because the mean of its divisors is an integer number (17394804).

Almost surely, 2^180349618 is an apocalyptic number.

180349618 is a deficient number, since it is larger than the sum of its proper divisors (97967246).

180349618 is a wasteful number, since it uses less digits than its factorization.

180349618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 180349618 is about 13429.4310378363. The cubic root of 180349618 is about 564.9869399440.

The spelling of 180349618 in words is "one hundred eighty million, three hundred forty-nine thousand, six hundred eighteen".