220766872 has 32 divisors (see below), whose sum is σ = 428313600. Its totient is φ = 106567200.

The previous prime is 220766851. The next prime is 220766873. The reversal of 220766872 is 278667022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220766873) by changing a digit.

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, 140829 + ... + 142387.

It is an arithmetic number, because the mean of its divisors is an integer number (13384800).

Almost surely, 2^220766872 is an apocalyptic number.

It is an amenable number.

220766872 is a deficient number, since it is larger than the sum of its proper divisors (207546728).

220766872 is a wasteful number, since it uses less digits than its factorization.

220766872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 220766872 is about 14858.2257352619. The cubic root of 220766872 is about 604.3816937432.

The spelling of 220766872 in words is "two hundred twenty million, seven hundred sixty-six thousand, eight hundred seventy-two".