220385867 has 16 divisors (see below), whose sum is σ = 244726272. Its totient is φ = 197185440.

The previous prime is 220385861. The next prime is 220385903. The reversal of 220385867 is 768583022.

It is a cyclic number.

It is not a de Polignac number, because 220385867 - 2⁸ = 220385611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220385861) 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, 63692 + ... + 67062.

It is an arithmetic number, because the mean of its divisors is an integer number (15295392).

Almost surely, 2^220385867 is an apocalyptic number.

220385867 is a deficient number, since it is larger than the sum of its proper divisors (24340405).

220385867 is a wasteful number, since it uses less digits than its factorization.

220385867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 220385867 is about 14845.3988494752. The cubic root of 220385867 is about 604.0338078455.

The spelling of 220385867 in words is "two hundred twenty million, three hundred eighty-five thousand, eight hundred sixty-seven".