1331244244 has 24 divisors (see below), whose sum is σ = 2550534336. Its totient is φ = 602952000.

The previous prime is 1331244227. The next prime is 1331244259. The reversal of 1331244244 is 4424421331.

It is a super-2 number, since 2×1331244244² = 3544422474366263072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41472 + ... + 66199.

It is an arithmetic number, because the mean of its divisors is an integer number (106272264).

Almost surely, 2^1331244244 is an apocalyptic number.

It is an amenable number.

1331244244 is a deficient number, since it is larger than the sum of its proper divisors (1219290092).

1331244244 is a wasteful number, since it uses less digits than its factorization.

1331244244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107967 (or 107965 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 1331244244 is about 36486.2199193065. The cubic root of 1331244244 is about 1100.0672807332.

Adding to 1331244244 its reverse (4424421331), we get a palindrome (5755665575).

The spelling of 1331244244 in words is "one billion, three hundred thirty-one million, two hundred forty-four thousand, two hundred forty-four".