220705869 has 8 divisors (see below), whose sum is σ = 299098912. Its totient is φ = 144725040.

The previous prime is 220705867. The next prime is 220705871. The reversal of 220705869 is 968507022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220705867) and next prime (220705871).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220705869 - 2¹ = 220705867 is a prime.

It is a super-2 number, since 2×220705869² = 97422161222090322, 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 (220705867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602839 + ... + 603204.

It is an arithmetic number, because the mean of its divisors is an integer number (37387364).

Almost surely, 2^220705869 is an apocalyptic number.

It is an amenable number.

220705869 is a deficient number, since it is larger than the sum of its proper divisors (78393043).

220705869 is a wasteful number, since it uses less digits than its factorization.

220705869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206107.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 220705869 is about 14856.1727574769. The cubic root of 220705869 is about 604.3260203949.

The spelling of 220705869 in words is "two hundred twenty million, seven hundred five thousand, eight hundred sixty-nine".