220669869 has 16 divisors (see below), whose sum is σ = 336755840. Its totient is φ = 125910720.

The previous prime is 220669849. The next prime is 220669871. The reversal of 220669869 is 968966022.

It is not a de Polignac number, because 220669869 - 2⁵ = 220669837 is a prime.

It is a super-2 number, since 2×220669869² = 97390382168954322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220669829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7479 + ... + 22299.

It is an arithmetic number, because the mean of its divisors is an integer number (21047240).

Almost surely, 2^220669869 is an apocalyptic number.

It is an amenable number.

220669869 is a deficient number, since it is larger than the sum of its proper divisors (116085971).

220669869 is a wasteful number, since it uses less digits than its factorization.

220669869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15540.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 220669869 is about 14854.9610904909. The cubic root of 220669869 is about 604.2931607949.

The spelling of 220669869 in words is "two hundred twenty million, six hundred sixty-nine thousand, eight hundred sixty-nine".