1389055468 has 24 divisors (see below), whose sum is σ = 2538208512. Its totient is φ = 663892944.

The previous prime is 1389055463. The next prime is 1389055511. The reversal of 1389055468 is 8645509831.

It is not an unprimeable number, because it can be changed into a prime (1389055463) 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, 167721 + ... + 175807.

It is an arithmetic number, because the mean of its divisors is an integer number (105758688).

Almost surely, 2^1389055468 is an apocalyptic number.

It is an amenable number.

1389055468 is a deficient number, since it is larger than the sum of its proper divisors (1149153044).

1389055468 is a wasteful number, since it uses less digits than its factorization.

1389055468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9981 (or 9979 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 1389055468 is about 37270.0344512854. The cubic root of 1389055468 is about 1115.7661871054.

The spelling of 1389055468 in words is "one billion, three hundred eighty-nine million, fifty-five thousand, four hundred sixty-eight".