1243392848 has 10 divisors (see below), whose sum is σ = 2409073674. Its totient is φ = 621696416.

The previous prime is 1243392847. The next prime is 1243392863. The reversal of 1243392848 is 8482933421.

It can be written as a sum of positive squares in only one way, i.e., 744853264 + 498539584 = 27292^2 + 22328^2 .

It is a super-2 number, since 2×1243392848² = 3092051548915102208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1243392799 and 1243392808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243392847) 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 as a sum of consecutive naturals, namely, 38856011 + ... + 38856042.

Almost surely, 2^1243392848 is an apocalyptic number.

It is an amenable number.

1243392848 is a deficient number, since it is larger than the sum of its proper divisors (1165680826).

1243392848 is an equidigital number, since it uses as much as digits as its factorization.

1243392848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77712061 (or 77712055 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 1243392848 is about 35261.7760187997. The cubic root of 1243392848 is about 1075.3160341412.

The spelling of 1243392848 in words is "one billion, two hundred forty-three million, three hundred ninety-two thousand, eight hundred forty-eight".