1338136371 has 24 divisors (see below), whose sum is σ = 2270779056. Its totient is φ = 748607040.

The previous prime is 1338136367. The next prime is 1338136379. The reversal of 1338136371 is 1736318331.

It is a happy number.

1338136371 is a `hidden beast` number, since 1 + 3 + 3 + 8 + 13 + 637 + 1 = 666.

It is not a de Polignac number, because 1338136371 - 2² = 1338136367 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338136379) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 518580 + ... + 521153.

It is an arithmetic number, because the mean of its divisors is an integer number (94615794).

Almost surely, 2^1338136371 is an apocalyptic number.

1338136371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1338136371 is a deficient number, since it is larger than the sum of its proper divisors (932642685).

1338136371 is a wasteful number, since it uses less digits than its factorization.

1338136371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039763 (or 1039760 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 1338136371 is about 36580.5463463847. The cubic root of 1338136371 is about 1101.9624392805.

The spelling of 1338136371 in words is "one billion, three hundred thirty-eight million, one hundred thirty-six thousand, three hundred seventy-one".