1243343044 has 6 divisors (see below), whose sum is σ = 2175850334. Its totient is φ = 621671520.

The previous prime is 1243343041. The next prime is 1243343047. The reversal of 1243343044 is 4403433421.

It is an interprime number because it is at equal distance from previous prime (1243343041) and next prime (1243343047).

It can be written as a sum of positive squares in only one way, i.e., 1227661444 + 15681600 = 35038^2 + 3960^2 .

It is not an unprimeable number, because it can be changed into a prime (1243343041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155417877 + ... + 155417884.

Almost surely, 2^1243343044 is an apocalyptic number.

It is an amenable number.

1243343044 is a deficient number, since it is larger than the sum of its proper divisors (932507290).

1243343044 is a wasteful number, since it uses less digits than its factorization.

1243343044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310835765 (or 310835763 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 1243343044 is about 35261.0698079341. The cubic root of 1243343044 is about 1075.3016767172.

Adding to 1243343044 its reverse (4403433421), we get a palindrome (5646776465).

The spelling of 1243343044 in words is "one billion, two hundred forty-three million, three hundred forty-three thousand, forty-four".