1130780280 has 256 divisors, whose sum is σ = 4090798080. Its totient is φ = 244468224.

The previous prime is 1130780263. The next prime is 1130780309. The reversal of 1130780280 is 820870311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2066967 + ... + 2067513.

It is an arithmetic number, because the mean of its divisors is an integer number (15979680).

Almost surely, 2^1130780280 is an apocalyptic number.

1130780280 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 1130780280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2045399040).

1130780280 is an abundant number, since it is smaller than the sum of its proper divisors (2960017800).

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

1130780280 is a wasteful number, since it uses less digits than its factorization.

1130780280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1130780280 is about 33627.0765901528. The cubic root of 1130780280 is about 1041.8201238522.

The spelling of 1130780280 in words is "one billion, one hundred thirty million, seven hundred eighty thousand, two hundred eighty".