220866862 has 16 divisors (see below), whose sum is σ = 334932912. Its totient is φ = 109226880.

The previous prime is 220866859. The next prime is 220866883. The reversal of 220866862 is 268668022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170437 + ... + 171727.

It is an arithmetic number, because the mean of its divisors is an integer number (20933307).

Almost surely, 2^220866862 is an apocalyptic number.

220866862 is a deficient number, since it is larger than the sum of its proper divisors (114066050).

220866862 is a wasteful number, since it uses less digits than its factorization.

220866862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 220866862 is about 14861.5901571804. The cubic root of 220866862 is about 604.4729257348.

The spelling of 220866862 in words is "two hundred twenty million, eight hundred sixty-six thousand, eight hundred sixty-two".