1338147889 has 32 divisors (see below), whose sum is σ = 1541965824. Its totient is φ = 1151884800.

The previous prime is 1338147887. The next prime is 1338147931. The reversal of 1338147889 is 9887418331.

It is not a de Polignac number, because 1338147889 - 2¹ = 1338147887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338147887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2204224 + ... + 2204830.

It is an arithmetic number, because the mean of its divisors is an integer number (48186432).

Almost surely, 2^1338147889 is an apocalyptic number.

It is an amenable number.

1338147889 is a deficient number, since it is larger than the sum of its proper divisors (203817935).

1338147889 is a wasteful number, since it uses less digits than its factorization.

1338147889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817.

The product of its digits is 1161216, while the sum is 52.

The square root of 1338147889 is about 36580.7037794518. The cubic root of 1338147889 is about 1101.9656009829.

The spelling of 1338147889 in words is "one billion, three hundred thirty-eight million, one hundred forty-seven thousand, eight hundred eighty-nine".