1122065280 has 384 divisors, whose sum is σ = 4691494080. Its totient is φ = 241238016.

The previous prime is 1122065233. The next prime is 1122065339. The reversal of 1122065280 is 825602211.

It is a happy number.

1122065280 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 0 + 652 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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, 684622 + ... + 686258.

Almost surely, 2^1122065280 is an apocalyptic number.

1122065280 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 1122065280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345747040).

1122065280 is an abundant number, since it is smaller than the sum of its proper divisors (3569428800).

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

1122065280 is a wasteful number, since it uses less digits than its factorization.

1122065280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1122065280 is about 33497.2428716156. The cubic root of 1122065280 is about 1039.1367590194.

Adding to 1122065280 its reverse (825602211), we get a palindrome (1947667491).

The spelling of 1122065280 in words is "one billion, one hundred twenty-two million, sixty-five thousand, two hundred eighty".