220814556 has 12 divisors (see below), whose sum is σ = 515233992. Its totient is φ = 73604848.

The previous prime is 220814551. The next prime is 220814569. The reversal of 220814556 is 655418022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220814551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9200595 + ... + 9200618.

It is an arithmetic number, because the mean of its divisors is an integer number (42936166).

Almost surely, 2^220814556 is an apocalyptic number.

It is an amenable number.

220814556 is an abundant number, since it is smaller than the sum of its proper divisors (294419436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220814556 is a wasteful number, since it uses less digits than its factorization.

220814556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18401220 (or 18401218 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 220814556 is about 14859.8302816688. The cubic root of 220814556 is about 604.4252045921.

The spelling of 220814556 in words is "two hundred twenty million, eight hundred fourteen thousand, five hundred fifty-six".