1322004340 has 24 divisors (see below), whose sum is σ = 2777031432. Its totient is φ = 528645120.

The previous prime is 1322004323. The next prime is 1322004347. The reversal of 1322004340 is 434002231.

It can be written as a sum of positive squares in 4 ways, for example, as 25140196 + 1296864144 = 5014^2 + 36012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322004347) 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 7 ways as a sum of consecutive naturals, for example, 79120 + ... + 94360.

It is an arithmetic number, because the mean of its divisors is an integer number (115709643).

Almost surely, 2^1322004340 is an apocalyptic number.

1322004340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322004340 is an abundant number, since it is smaller than the sum of its proper divisors (1455027092).

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

1322004340 is a wasteful number, since it uses less digits than its factorization.

1322004340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19587 (or 19585 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1322004340 is about 36359.3776074344. The cubic root of 1322004340 is about 1097.5162527883.

Adding to 1322004340 its reverse (434002231), we get a palindrome (1756006571).

The spelling of 1322004340 in words is "one billion, three hundred twenty-two million, four thousand, three hundred forty".