864180242 has 16 divisors (see below), whose sum is σ = 1396265472. Its totient is φ = 399970560.

The previous prime is 864180223. The next prime is 864180253. The reversal of 864180242 is 242081468.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301583 + ... + 304434.

It is an arithmetic number, because the mean of its divisors is an integer number (87266592).

Almost surely, 2^864180242 is an apocalyptic number.

864180242 is a deficient number, since it is larger than the sum of its proper divisors (532085230).

864180242 is a wasteful number, since it uses less digits than its factorization.

864180242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606073.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 864180242 is about 29396.9427321958. The cubic root of 864180242 is about 952.5068572103.

The spelling of 864180242 in words is "eight hundred sixty-four million, one hundred eighty thousand, two hundred forty-two".