220288782 has 32 divisors (see below), whose sum is σ = 508147200. Its totient is φ = 62360928.

The previous prime is 220288781. The next prime is 220288799. The reversal of 220288782 is 287882022.

It is a self number, because there is not a number n which added to its sum of digits gives 220288782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220288781) 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 15 ways as a sum of consecutive naturals, for example, 19482 + ... + 28637.

It is an arithmetic number, because the mean of its divisors is an integer number (15879600).

Almost surely, 2^220288782 is an apocalyptic number.

220288782 is an abundant number, since it is smaller than the sum of its proper divisors (287858418).

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

220288782 is a wasteful number, since it uses less digits than its factorization.

220288782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48240.

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 220288782 is about 14842.1286209223. The cubic root of 220288782 is about 603.9450979292.

The spelling of 220288782 in words is "two hundred twenty million, two hundred eighty-eight thousand, seven hundred eighty-two".