1133280720 has 400 divisors, whose sum is σ = 4627953792. Its totient is φ = 253393920.

The previous prime is 1133280719. The next prime is 1133280749. The reversal of 1133280720 is 270823311.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 926029 + ... + 927251.

Almost surely, 2^1133280720 is an apocalyptic number.

1133280720 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 1133280720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2313976896).

1133280720 is an abundant number, since it is smaller than the sum of its proper divisors (3494673072).

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

1133280720 is a wasteful number, since it uses less digits than its factorization.

1133280720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1133280720 is about 33664.2350276967. The cubic root of 1133280720 is about 1042.5874674295.

The spelling of 1133280720 in words is "one billion, one hundred thirty-three million, two hundred eighty thousand, seven hundred twenty".