868433220 has 36 divisors (see below), whose sum is σ = 2634247980. Its totient is φ = 231582144.

The previous prime is 868433207. The next prime is 868433221. The reversal of 868433220 is 22334868.

868433220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 191600964 + 676832256 = 13842^2 + 26016^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (868433221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2412135 + ... + 2412494.

It is an arithmetic number, because the mean of its divisors is an integer number (73173555).

Almost surely, 2^868433220 is an apocalyptic number.

It is an amenable number.

868433220 is an abundant number, since it is smaller than the sum of its proper divisors (1765814760).

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

868433220 is a wasteful number, since it uses less digits than its factorization.

868433220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824644 (or 4824639 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 868433220 is about 29469.1910306340. The cubic root of 868433220 is about 954.0668571211.

The spelling of 868433220 in words is "eight hundred sixty-eight million, four hundred thirty-three thousand, two hundred twenty".