1028238582820 has 96 divisors (see below), whose sum is σ = 2260544832000. Its totient is φ = 392129869824.

The previous prime is 1028238582733. The next prime is 1028238582821. The reversal of 1028238582820 is 282858328201.

It is not an unprimeable number, because it can be changed into a prime (1028238582821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226033906 + ... + 226038454.

It is an arithmetic number, because the mean of its divisors is an integer number (23547342000).

Almost surely, 2^{1028238582820} is an apocalyptic number.

1028238582820 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 1028238582820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130272416000).

1028238582820 is an abundant number, since it is smaller than the sum of its proper divisors (1232306249180).

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

1028238582820 is a wasteful number, since it uses less digits than its factorization.

1028238582820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6077 (or 6075 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 49.

The spelling of 1028238582820 in words is "one trillion, twenty-eight billion, two hundred thirty-eight million, five hundred eighty-two thousand, eight hundred twenty".