1133042220 has 72 divisors (see below), whose sum is σ = 3451287840. Its totient is φ = 300879360.

The previous prime is 1133042203. The next prime is 1133042227. The reversal of 1133042220 is 222403311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1133042193 and 1133042202.

It is not an unprimeable number, because it can be changed into a prime (1133042227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30321 + ... + 56439.

Almost surely, 2^1133042220 is an apocalyptic number.

1133042220 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 1133042220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725643920).

1133042220 is an abundant number, since it is smaller than the sum of its proper divisors (2318245620).

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

1133042220 is a wasteful number, since it uses less digits than its factorization.

1133042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26375 (or 26370 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1133042220 is about 33660.6925062453. The cubic root of 1133042220 is about 1042.5143244586.

Adding to 1133042220 its reverse (222403311), we get a palindrome (1355445531).

The spelling of 1133042220 in words is "one billion, one hundred thirty-three million, forty-two thousand, two hundred twenty".