1340243332 has 12 divisors (see below), whose sum is σ = 2349345600. Its totient is φ = 669001736.

The previous prime is 1340243291. The next prime is 1340243353. The reversal of 1340243332 is 2333420431.

It is a junction number, because it is equal to n+sod(n) for n = 1340243297 and 1340243306.

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 3 ways as a sum of consecutive naturals, for example, 277288 + ... + 282079.

It is an arithmetic number, because the mean of its divisors is an integer number (195778800).

Almost surely, 2^1340243332 is an apocalyptic number.

It is an amenable number.

1340243332 is a deficient number, since it is larger than the sum of its proper divisors (1009102268).

1340243332 is a wasteful number, since it uses less digits than its factorization.

1340243332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559970 (or 559968 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 1340243332 is about 36609.3339464132. Note that the first 3 decimals coincide. The cubic root of 1340243332 is about 1102.5405005321.

Adding to 1340243332 its reverse (2333420431), we get a palindrome (3673663763).

The spelling of 1340243332 in words is "one billion, three hundred forty million, two hundred forty-three thousand, three hundred thirty-two".