1248389836 has 24 divisors (see below), whose sum is σ = 2203175520. Its totient is φ = 618934272.

The previous prime is 1248389801. The next prime is 1248389839. The reversal of 1248389836 is 6389838421.

It is not an unprimeable number, because it can be changed into a prime (1248389839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232761 + ... + 238063.

It is an arithmetic number, because the mean of its divisors is an integer number (91798980).

Almost surely, 2^1248389836 is an apocalyptic number.

It is an amenable number.

1248389836 is a deficient number, since it is larger than the sum of its proper divisors (954785684).

1248389836 is a wasteful number, since it uses less digits than its factorization.

1248389836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5793 (or 5791 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 1248389836 is about 35332.5605638765. The cubic root of 1248389836 is about 1076.7546138491.

The spelling of 1248389836 in words is "one billion, two hundred forty-eight million, three hundred eighty-nine thousand, eight hundred thirty-six".