1388108089 has 8 divisors (see below), whose sum is σ = 1470147840. Its totient is φ = 1306111296.

The previous prime is 1388108087. The next prime is 1388108093. The reversal of 1388108089 is 9808018831.

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 1388108089 - 2¹ = 1388108087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1388108081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75772 + ... + 92290.

It is an arithmetic number, because the mean of its divisors is an integer number (183768480).

Almost surely, 2^1388108089 is an apocalyptic number.

It is an amenable number.

1388108089 is a deficient number, since it is larger than the sum of its proper divisors (82039751).

1388108089 is a wasteful number, since it uses less digits than its factorization.

1388108089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21479.

The product of its (nonzero) digits is 110592, while the sum is 46.

The square root of 1388108089 is about 37257.3226225396. The cubic root of 1388108089 is about 1115.5124670094.

The spelling of 1388108089 in words is "one billion, three hundred eighty-eight million, one hundred eight thousand, eighty-nine".