1338553489 has 16 divisors (see below), whose sum is σ = 1648369408. Its totient is φ = 1058484672.

The previous prime is 1338553487. The next prime is 1338553499. The reversal of 1338553489 is 9843558331.

It is not a de Polignac number, because 1338553489 - 2¹ = 1338553487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338553481) 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, 238099 + ... + 243655.

It is an arithmetic number, because the mean of its divisors is an integer number (103023088).

Almost surely, 2^1338553489 is an apocalyptic number.

It is an amenable number.

1338553489 is a deficient number, since it is larger than the sum of its proper divisors (309815919).

1338553489 is a wasteful number, since it uses less digits than its factorization.

1338553489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224.

The product of its digits is 1555200, while the sum is 49.

The square root of 1338553489 is about 36586.2472658785. The cubic root of 1338553489 is about 1102.0769270181.

The spelling of 1338553489 in words is "one billion, three hundred thirty-eight million, five hundred fifty-three thousand, four hundred eighty-nine".