1243234412 has 96 divisors (see below), whose sum is σ = 2735824896. Its totient is φ = 482227200.

The previous prime is 1243234403. The next prime is 1243234423. The reversal of 1243234412 is 2144323421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1364237 + ... + 1365147.

It is an arithmetic number, because the mean of its divisors is an integer number (28498176).

Almost surely, 2^1243234412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243234412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367912448).

1243234412 is an abundant number, since it is smaller than the sum of its proper divisors (1492590484).

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

1243234412 is a wasteful number, since it uses less digits than its factorization.

1243234412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1045 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 1243234412 is about 35259.5293785949. The cubic root of 1243234412 is about 1075.2703591136.

Adding to 1243234412 its reverse (2144323421), we get a palindrome (3387557833).

The spelling of 1243234412 in words is "one billion, two hundred forty-three million, two hundred thirty-four thousand, four hundred twelve".