1338889899 has 8 divisors (see below), whose sum is σ = 1785934800. Its totient is φ = 892219136.

The previous prime is 1338889897. The next prime is 1338889913. The reversal of 1338889899 is 9989888331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1338889899 - 2¹ = 1338889897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338889897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85074 + ... + 99575.

It is an arithmetic number, because the mean of its divisors is an integer number (223241850).

Almost surely, 2^1338889899 is an apocalyptic number.

1338889899 is a deficient number, since it is larger than the sum of its proper divisors (447044901).

1338889899 is a wasteful number, since it uses less digits than its factorization.

1338889899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187069.

The product of its digits is 26873856, while the sum is 66.

The square root of 1338889899 is about 36590.8444696211. The cubic root of 1338889899 is about 1102.1692452425.

The spelling of 1338889899 in words is "one billion, three hundred thirty-eight million, eight hundred eighty-nine thousand, eight hundred ninety-nine".