1313260244 has 24 divisors (see below), whose sum is σ = 2385973800. Its totient is φ = 631715840.

The previous prime is 1313260241. The next prime is 1313260283. The reversal of 1313260244 is 4420623131.

It can be written as a sum of positive squares in 4 ways, for example, as 679227844 + 634032400 = 26062^2 + 25180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313260241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12452 + ... + 52740.

It is an arithmetic number, because the mean of its divisors is an integer number (99415575).

Almost surely, 2^1313260244 is an apocalyptic number.

It is an amenable number.

1313260244 is a deficient number, since it is larger than the sum of its proper divisors (1072713556).

1313260244 is a wasteful number, since it uses less digits than its factorization.

1313260244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40603 (or 40601 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1313260244 is about 36238.9327105532. The cubic root of 1313260244 is about 1095.0911411944.

Adding to 1313260244 its reverse (4420623131), we get a palindrome (5733883375).

The spelling of 1313260244 in words is "one billion, three hundred thirteen million, two hundred sixty thousand, two hundred forty-four".