1248939312 has 40 divisors (see below), whose sum is σ = 3396240960. Its totient is φ = 394401600.

The previous prime is 1248939299. The next prime is 1248939313. The reversal of 1248939312 is 2139398421.

It is not an unprimeable number, because it can be changed into a prime (1248939313) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 683814 + ... + 685637.

It is an arithmetic number, because the mean of its divisors is an integer number (84906024).

Almost surely, 2^1248939312 is an apocalyptic number.

1248939312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1248939312 is an abundant number, since it is smaller than the sum of its proper divisors (2147301648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1248939312 is a wasteful number, since it uses less digits than its factorization.

1248939312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369481 (or 1369475 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 1248939312 is about 35340.3354822786. The cubic root of 1248939312 is about 1076.9125677237.

The spelling of 1248939312 in words is "one billion, two hundred forty-eight million, nine hundred thirty-nine thousand, three hundred twelve".