1080800028 has 144 divisors (see below), whose sum is σ = 3585603840. Its totient is φ = 265939200.

The previous prime is 1080800011. The next prime is 1080800033. The reversal of 1080800028 is 8200080801.

It is a junction number, because it is equal to n+sod(n) for n = 1080799974 and 1080800010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42408 + ... + 62928.

Almost surely, 2^1080800028 is an apocalyptic number.

1080800028 is a gapful number since it is divisible by the number (18) 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 1080800028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792801920).

1080800028 is an abundant number, since it is smaller than the sum of its proper divisors (2504803812).

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

1080800028 is a wasteful number, since it uses less digits than its factorization.

1080800028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20568 (or 20563 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 1080800028 is about 32875.5232353798. The cubic root of 1080800028 is about 1026.2388441132.

Adding to 1080800028 its reverse (8200080801), we get a palindrome (9280880829).

It can be divided in two parts, 1080 and 800028, that added together give a palindrome (801108).

The spelling of 1080800028 in words is "one billion, eighty million, eight hundred thousand, twenty-eight".