1322043340 has 12 divisors (see below), whose sum is σ = 2776291056. Its totient is φ = 528817328.

The previous prime is 1322043293. The next prime is 1322043347. The reversal of 1322043340 is 433402231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1322043347) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33051064 + ... + 33051103.

It is an arithmetic number, because the mean of its divisors is an integer number (231357588).

Almost surely, 2^1322043340 is an apocalyptic number.

1322043340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322043340 is an abundant number, since it is smaller than the sum of its proper divisors (1454247716).

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

1322043340 is a wasteful number, since it uses less digits than its factorization.

1322043340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66102176 (or 66102174 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1322043340 is about 36359.9139162897. The cubic root of 1322043340 is about 1097.5270451666.

Adding to 1322043340 its reverse (433402231), we get a palindrome (1755445571).

The spelling of 1322043340 in words is "one billion, three hundred twenty-two million, forty-three thousand, three hundred forty".