1299344264 has 16 divisors (see below), whose sum is σ = 2437331100. Its totient is φ = 649389312.

The previous prime is 1299344257. The next prime is 1299344269. The reversal of 1299344264 is 4624439921.

It can be written as a sum of positive squares in 2 ways, for example, as 1227941764 + 71402500 = 35042^2 + 8450^2 .

It is not an unprimeable number, because it can be changed into a prime (1299344269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15149 + ... + 53180.

Almost surely, 2^1299344264 is an apocalyptic number.

It is an amenable number.

1299344264 is a deficient number, since it is larger than the sum of its proper divisors (1137986836).

1299344264 is a wasteful number, since it uses less digits than its factorization.

1299344264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70712 (or 70708 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 1299344264 is about 36046.4181854453. The cubic root of 1299344264 is about 1091.2093481976.

The spelling of 1299344264 in words is "one billion, two hundred ninety-nine million, three hundred forty-four thousand, two hundred sixty-four".