1243442244 has 24 divisors (see below), whose sum is σ = 3165126048. Its totient is φ = 376800640.

The previous prime is 1243442183. The next prime is 1243442257. The reversal of 1243442244 is 4422443421.

It is a super-2 number, since 2×1243442244² = 3092297228327511072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 4709877 + ... + 4710140.

It is an arithmetic number, because the mean of its divisors is an integer number (131880252).

Almost surely, 2^1243442244 is an apocalyptic number.

It is an amenable number.

1243442244 is an abundant number, since it is smaller than the sum of its proper divisors (1921683804).

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

1243442244 is a wasteful number, since it uses less digits than its factorization.

1243442244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9420035 (or 9420033 counting only the distinct ones).

The product of its digits is 24576, while the sum is 30.

The square root of 1243442244 is about 35262.4764303360. The cubic root of 1243442244 is about 1075.3302735688.

Adding to 1243442244 its reverse (4422443421), we get a palindrome (5665885665).

The spelling of 1243442244 in words is "one billion, two hundred forty-three million, four hundred forty-two thousand, two hundred forty-four".