220193868 has 48 divisors (see below), whose sum is σ = 548674560. Its totient is φ = 68577600.

The previous prime is 220193863. The next prime is 220193879. The reversal of 220193868 is 868391022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220193863) 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, 583 + ... + 20993.

It is an arithmetic number, because the mean of its divisors is an integer number (11430720).

Almost surely, 2^220193868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220193868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274337280).

220193868 is an abundant number, since it is smaller than the sum of its proper divisors (328480692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220193868 is a wasteful number, since it uses less digits than its factorization.

220193868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20478 (or 20476 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 220193868 is about 14838.9308240183. The cubic root of 220193868 is about 603.8583465307.

It can be divided in two parts, 2201 and 93868, that added together give a palindrome (96069).

The spelling of 220193868 in words is "two hundred twenty million, one hundred ninety-three thousand, eight hundred sixty-eight".