220432868 has 6 divisors (see below), whose sum is σ = 385757526. Its totient is φ = 110216432.

The previous prime is 220432859. The next prime is 220432871. The reversal of 220432868 is 868234022.

It can be written as a sum of positive squares in only one way, i.e., 167754304 + 52678564 = 12952^2 + 7258^2 .

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 as a sum of consecutive naturals, namely, 27554105 + ... + 27554112.

It is an arithmetic number, because the mean of its divisors is an integer number (64292921).

Almost surely, 2^220432868 is an apocalyptic number.

It is an amenable number.

220432868 is a deficient number, since it is larger than the sum of its proper divisors (165324658).

220432868 is a wasteful number, since it uses less digits than its factorization.

220432868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55108221 (or 55108219 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 220432868 is about 14846.9817808200. The cubic root of 220432868 is about 604.0767449228.

The spelling of 220432868 in words is "two hundred twenty million, four hundred thirty-two thousand, eight hundred sixty-eight".