1238236868 has 12 divisors (see below), whose sum is σ = 2363906832. Its totient is φ = 562834920.

The previous prime is 1238236861. The next prime is 1238236927. The reversal of 1238236868 is 8686328321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1238236861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14070830 + ... + 14070917.

It is an arithmetic number, because the mean of its divisors is an integer number (196992236).

Almost surely, 2^1238236868 is an apocalyptic number.

It is an amenable number.

1238236868 is a deficient number, since it is larger than the sum of its proper divisors (1125669964).

1238236868 is a wasteful number, since it uses less digits than its factorization.

1238236868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28141762 (or 28141760 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 1238236868 is about 35188.5900257456. The cubic root of 1238236868 is about 1073.8276364317.

The spelling of 1238236868 in words is "one billion, two hundred thirty-eight million, two hundred thirty-six thousand, eight hundred sixty-eight".