220706268 has 12 divisors (see below), whose sum is σ = 514981320. Its totient is φ = 73568752.

The previous prime is 220706243. The next prime is 220706273. The reversal of 220706268 is 862607022.

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

It is a super-2 number, since 2×220706268² = 97422513468975648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9196083 + ... + 9196106.

It is an arithmetic number, because the mean of its divisors is an integer number (42915110).

Almost surely, 2^220706268 is an apocalyptic number.

It is an amenable number.

220706268 is an abundant number, since it is smaller than the sum of its proper divisors (294275052).

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

220706268 is a wasteful number, since it uses less digits than its factorization.

220706268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18392196 (or 18392194 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 220706268 is about 14856.1861862323. The cubic root of 220706268 is about 604.3263845688.

The spelling of 220706268 in words is "two hundred twenty million, seven hundred six thousand, two hundred sixty-eight".