1133991340 has 12 divisors (see below), whose sum is σ = 2381381856. Its totient is φ = 453596528.

The previous prime is 1133991323. The next prime is 1133991347. The reversal of 1133991340 is 431993311.

It is a happy number.

1133991340 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1133991296 and 1133991305.

It is not an unprimeable number, because it can be changed into a prime (1133991347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28349764 + ... + 28349803.

It is an arithmetic number, because the mean of its divisors is an integer number (198448488).

Almost surely, 2^1133991340 is an apocalyptic number.

1133991340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133991340 is an abundant number, since it is smaller than the sum of its proper divisors (1247390516).

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

1133991340 is a wasteful number, since it uses less digits than its factorization.

1133991340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56699576 (or 56699574 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 1133991340 is about 33674.7878983669. The cubic root of 1133991340 is about 1042.8053389274.

The spelling of 1133991340 in words is "one billion, one hundred thirty-three million, nine hundred ninety-one thousand, three hundred forty".