220928269 has 2 divisors, whose sum is σ = 220928270. Its totient is φ = 220928268.

The previous prime is 220928261. The next prime is 220928297. The reversal of 220928269 is 962829022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220522500 + 405769 = 14850^2 + 637^2 .

It is a cyclic number.

It is not a de Polignac number, because 220928269 - 2³ = 220928261 is a prime.

It is a super-2 number, since 2×220928269² = 97618600086672722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220928261) 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 as a sum of consecutive naturals, namely, 110464134 + 110464135.

It is an arithmetic number, because the mean of its divisors is an integer number (110464135).

Almost surely, 2^220928269 is an apocalyptic number.

It is an amenable number.

220928269 is a deficient number, since it is larger than the sum of its proper divisors (1).

220928269 is an equidigital number, since it uses as much as digits as its factorization.

220928269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 220928269 is about 14863.6559769123. The cubic root of 220928269 is about 604.5289405199.

The spelling of 220928269 in words is "two hundred twenty million, nine hundred twenty-eight thousand, two hundred sixty-nine".