1238813336 has 8 divisors (see below), whose sum is σ = 2322775020. Its totient is φ = 619406664.

The previous prime is 1238813333. The next prime is 1238813363. The reversal of 1238813336 is 6333188321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1238813336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238813333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77425826 + ... + 77425841.

Almost surely, 2^1238813336 is an apocalyptic number.

It is an amenable number.

1238813336 is a deficient number, since it is larger than the sum of its proper divisors (1083961684).

1238813336 is a wasteful number, since it uses less digits than its factorization.

1238813336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154851673 (or 154851669 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 1238813336 is about 35196.7801936484. The cubic root of 1238813336 is about 1073.9942527033.

The spelling of 1238813336 in words is "one billion, two hundred thirty-eight million, eight hundred thirteen thousand, three hundred thirty-six".