1133442020 has 24 divisors (see below), whose sum is σ = 2520242424. Its totient is φ = 426707456.

The previous prime is 1133441987. The next prime is 1133442043. The reversal of 1133442020 is 202443311.

It can be written as a sum of positive squares in 4 ways, for example, as 79530724 + 1053911296 = 8918^2 + 32464^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1133441983 and 1133442001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666487 + ... + 1667166.

It is an arithmetic number, because the mean of its divisors is an integer number (105010101).

Almost surely, 2^1133442020 is an apocalyptic number.

1133442020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133442020 is an abundant number, since it is smaller than the sum of its proper divisors (1386800404).

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

1133442020 is a wasteful number, since it uses less digits than its factorization.

1133442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333679 (or 3333677 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1133442020 is about 33666.6306600468. The cubic root of 1133442020 is about 1042.6369289553.

Adding to 1133442020 its reverse (202443311), we get a palindrome (1335885331).

The spelling of 1133442020 in words is "one billion, one hundred thirty-three million, four hundred forty-two thousand, twenty".