1338317387 has 16 divisors (see below), whose sum is σ = 1471219200. Its totient is φ = 1207324800.

The previous prime is 1338317381. The next prime is 1338317389. The reversal of 1338317387 is 7837138331.

It is not a de Polignac number, because 1338317387 - 2⁴ = 1338317371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338317381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1297562 + ... + 1298592.

It is an arithmetic number, because the mean of its divisors is an integer number (91951200).

Almost surely, 2^1338317387 is an apocalyptic number.

1338317387 is a deficient number, since it is larger than the sum of its proper divisors (132901813).

1338317387 is a wasteful number, since it uses less digits than its factorization.

1338317387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834.

The product of its digits is 254016, while the sum is 44.

The square root of 1338317387 is about 36583.0204739849. The cubic root of 1338317387 is about 1102.0121262539.

The spelling of 1338317387 in words is "one billion, three hundred thirty-eight million, three hundred seventeen thousand, three hundred eighty-seven".