1249340264 has 16 divisors (see below), whose sum is σ = 2359613700. Its totient is φ = 620109952.

The previous prime is 1249340249. The next prime is 1249340273. The reversal of 1249340264 is 4620439421.

It can be written as a sum of positive squares in 2 ways, for example, as 1190940100 + 58400164 = 34510^2 + 7642^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568859 + ... + 571050.

Almost surely, 2^1249340264 is an apocalyptic number.

It is an amenable number.

1249340264 is a deficient number, since it is larger than the sum of its proper divisors (1110273436).

1249340264 is a wasteful number, since it uses less digits than its factorization.

1249340264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140052 (or 1140048 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 1249340264 is about 35346.0077519371. The cubic root of 1249340264 is about 1077.0277972483.

Adding to 1249340264 its reverse (4620439421), we get a palindrome (5869779685).

The spelling of 1249340264 in words is "one billion, two hundred forty-nine million, three hundred forty thousand, two hundred sixty-four".