220928284 has 6 divisors (see below), whose sum is σ = 386624504. Its totient is φ = 110464140.

The previous prime is 220928269. The next prime is 220928297. The reversal of 220928284 is 482829022.

220928284 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27616032 + ... + 27616039.

Almost surely, 2^220928284 is an apocalyptic number.

It is an amenable number.

220928284 is a deficient number, since it is larger than the sum of its proper divisors (165696220).

220928284 is a wasteful number, since it uses less digits than its factorization.

220928284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55232075 (or 55232073 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 220928284 is about 14863.6564814988. The cubic root of 220928284 is about 604.5289542015.

The spelling of 220928284 in words is "two hundred twenty million, nine hundred twenty-eight thousand, two hundred eighty-four".