1300243444 has 12 divisors (see below), whose sum is σ = 2276576064. Its totient is φ = 649793144.

The previous prime is 1300243423. The next prime is 1300243459. The reversal of 1300243444 is 4443420031.

It is a super-2 number, since 2×1300243444² = 3381266027329962272, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 73132 + ... + 89155.

It is an arithmetic number, because the mean of its divisors is an integer number (189714672).

Almost surely, 2^1300243444 is an apocalyptic number.

It is an amenable number.

1300243444 is a deficient number, since it is larger than the sum of its proper divisors (976332620).

1300243444 is a wasteful number, since it uses less digits than its factorization.

1300243444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164294 (or 164292 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1300243444 is about 36058.8885574694. Note that the first 3 decimals coincide. The cubic root of 1300243444 is about 1091.4610052318.

Adding to 1300243444 its reverse (4443420031), we get a palindrome (5743663475).

The spelling of 1300243444 in words is "one billion, three hundred million, two hundred forty-three thousand, four hundred forty-four".