220863788 has 12 divisors (see below), whose sum is σ = 387142392. Its totient is φ = 110251680.

The previous prime is 220863787. The next prime is 220863817. The reversal of 220863788 is 887368022.

It is not an unprimeable number, because it can be changed into a prime (220863787) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42278 + ... + 47213.

It is an arithmetic number, because the mean of its divisors is an integer number (32261866).

Almost surely, 2^220863788 is an apocalyptic number.

It is an amenable number.

220863788 is a deficient number, since it is larger than the sum of its proper divisors (166278604).

220863788 is a wasteful number, since it uses less digits than its factorization.

220863788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90112 (or 90110 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 220863788 is about 14861.4867358552. The cubic root of 220863788 is about 604.4701213932.

The spelling of 220863788 in words is "two hundred twenty million, eight hundred sixty-three thousand, seven hundred eighty-eight".