1338236456 has 8 divisors (see below), whose sum is σ = 2509193370. Its totient is φ = 669118224.

The previous prime is 1338236437. The next prime is 1338236561. The reversal of 1338236456 is 6546328331.

It can be written as a sum of positive squares in only one way, i.e., 890067556 + 448168900 = 29834^2 + 21170^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83639771 + ... + 83639786.

Almost surely, 2^1338236456 is an apocalyptic number.

It is an amenable number.

1338236456 is a deficient number, since it is larger than the sum of its proper divisors (1170956914).

1338236456 is a wasteful number, since it uses less digits than its factorization.

1338236456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167279563 (or 167279559 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 1338236456 is about 36581.9143293513. The cubic root of 1338236456 is about 1101.9899121060.

The spelling of 1338236456 in words is "one billion, three hundred thirty-eight million, two hundred thirty-six thousand, four hundred fifty-six".