1338458517 has 12 divisors (see below), whose sum is σ = 2109086304. Its totient is φ = 811186920.

The previous prime is 1338458497. The next prime is 1338458533. The reversal of 1338458517 is 7158548331.

It is a happy number.

1338458517 is a `hidden beast` number, since 1 + 3 + 3 + 84 + 58 + 517 = 666.

It is not a de Polignac number, because 1338458517 - 2⁶ = 1338458453 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338458917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6759793 + ... + 6759990.

It is an arithmetic number, because the mean of its divisors is an integer number (175757192).

Almost surely, 2^1338458517 is an apocalyptic number.

It is an amenable number.

1338458517 is a deficient number, since it is larger than the sum of its proper divisors (770627787).

1338458517 is a wasteful number, since it uses less digits than its factorization.

1338458517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13519800 (or 13519797 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 1338458517 is about 36584.9493234581. The cubic root of 1338458517 is about 1102.0508618350.

The spelling of 1338458517 in words is "one billion, three hundred thirty-eight million, four hundred fifty-eight thousand, five hundred seventeen".