220256343 has 12 divisors (see below), whose sum is σ = 319064200. Its totient is φ = 146414736.

The previous prime is 220256339. The next prime is 220256357. The reversal of 220256343 is 343652022.

220256343 is a `hidden beast` number, since 2 + 2 + 0 + 25 + 634 + 3 = 666.

It is not a de Polignac number, because 220256343 - 2² = 220256339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220256383) 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 11 ways as a sum of consecutive naturals, for example, 31921 + ... + 38202.

Almost surely, 2^220256343 is an apocalyptic number.

220256343 is a deficient number, since it is larger than the sum of its proper divisors (98807857).

220256343 is a wasteful number, since it uses less digits than its factorization.

220256343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70478 (or 70475 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 220256343 is about 14841.0357792170. The cubic root of 220256343 is about 603.9154514857.

The spelling of 220256343 in words is "two hundred twenty million, two hundred fifty-six thousand, three hundred forty-three".