1133428280 has 64 divisors (see below), whose sum is σ = 2724624000. Its totient is φ = 423080064.

The previous prime is 1133428277. The next prime is 1133428297. The reversal of 1133428280 is 828243311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39791 + ... + 62049.

It is an arithmetic number, because the mean of its divisors is an integer number (42572250).

Almost surely, 2^1133428280 is an apocalyptic number.

1133428280 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 1133428280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1362312000).

1133428280 is an abundant number, since it is smaller than the sum of its proper divisors (1591195720).

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

1133428280 is a wasteful number, since it uses less digits than its factorization.

1133428280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22356 (or 22352 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1133428280 is about 33666.4265998041. The cubic root of 1133428280 is about 1042.6327158625.

The spelling of 1133428280 in words is "one billion, one hundred thirty-three million, four hundred twenty-eight thousand, two hundred eighty".