1249324528 has 20 divisors (see below), whose sum is σ = 2461594680. Its totient is φ = 614074304.

The previous prime is 1249324523. The next prime is 1249324561. The reversal of 1249324528 is 8254239421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249324523) by changing a digit.

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, 660775 + ... + 662662.

It is an arithmetic number, because the mean of its divisors is an integer number (123079734).

Almost surely, 2^1249324528 is an apocalyptic number.

It is an amenable number.

1249324528 is a deficient number, since it is larger than the sum of its proper divisors (1212270152).

1249324528 is a wasteful number, since it uses less digits than its factorization.

1249324528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323504 (or 1323498 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 1249324528 is about 35345.7851518395. The cubic root of 1249324528 is about 1077.0232753469.

The spelling of 1249324528 in words is "one billion, two hundred forty-nine million, three hundred twenty-four thousand, five hundred twenty-eight".