1345443412 has 12 divisors (see below), whose sum is σ = 2354891616. Its totient is φ = 672617240.

The previous prime is 1345443377. The next prime is 1345443419. The reversal of 1345443412 is 2143445431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345443419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7737 + ... + 52447.

It is an arithmetic number, because the mean of its divisors is an integer number (196240968).

Almost surely, 2^1345443412 is an apocalyptic number.

It is an amenable number.

1345443412 is a deficient number, since it is larger than the sum of its proper divisors (1009448204).

1345443412 is a wasteful number, since it uses less digits than its factorization.

1345443412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52238 (or 52236 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 1345443412 is about 36680.2864220006. The cubic root of 1345443412 is about 1103.9645951066.

Adding to 1345443412 its reverse (2143445431), we get a palindrome (3488888843).

The spelling of 1345443412 in words is "one billion, three hundred forty-five million, four hundred forty-three thousand, four hundred twelve".