1443321412 has 12 divisors (see below), whose sum is σ = 2720105836. Its totient is φ = 666148320.

The previous prime is 1443321409. The next prime is 1443321431. The reversal of 1443321412 is 2141233441.

It can be written as a sum of positive squares in 2 ways, for example, as 146313216 + 1297008196 = 12096^2 + 36014^2 .

It is an unprimeable number.

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, 13878039 + ... + 13878142.

Almost surely, 2^1443321412 is an apocalyptic number.

It is an amenable number.

1443321412 is a deficient number, since it is larger than the sum of its proper divisors (1276784424).

1443321412 is a wasteful number, since it uses less digits than its factorization.

1443321412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27756198 (or 27756196 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 1443321412 is about 37991.0701612892. The cubic root of 1443321412 is about 1130.1107814224.

Adding to 1443321412 its reverse (2141233441), we get a palindrome (3584554853).

The spelling of 1443321412 in words is "one billion, four hundred forty-three million, three hundred twenty-one thousand, four hundred twelve".