1028222860 has 72 divisors (see below), whose sum is σ = 2517147360. Its totient is φ = 351783936.

The previous prime is 1028222857. The next prime is 1028222879. The reversal of 1028222860 is 682228201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 658761 + ... + 660319.

It is an arithmetic number, because the mean of its divisors is an integer number (34960380).

Almost surely, 2^1028222860 is an apocalyptic number.

1028222860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028222860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258573680).

1028222860 is an abundant number, since it is smaller than the sum of its proper divisors (1488924500).

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

1028222860 is a wasteful number, since it uses less digits than its factorization.

1028222860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 1028222860 is about 32065.9143016381. The cubic root of 1028222860 is about 1009.3204787812.

The spelling of 1028222860 in words is "one billion, twenty-eight million, two hundred twenty-two thousand, eight hundred sixty".