1389388588 has 12 divisors (see below), whose sum is σ = 2778777232. Its totient is φ = 595452240.

The previous prime is 1389388519. The next prime is 1389388589. The reversal of 1389388588 is 8858839831.

1389388588 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1389388589) 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 3 ways as a sum of consecutive naturals, for example, 24810483 + ... + 24810538.

Almost surely, 2^1389388588 is an apocalyptic number.

It is an amenable number.

1389388588 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1389388588 is a wasteful number, since it uses less digits than its factorization.

1389388588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49621032 (or 49621030 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 61.

The square root of 1389388588 is about 37274.5031891775. The cubic root of 1389388588 is about 1115.8553734465.

The spelling of 1389388588 in words is "one billion, three hundred eighty-nine million, three hundred eighty-eight thousand, five hundred eighty-eight".