1389060056 has 16 divisors (see below), whose sum is σ = 2741566200. Its totient is φ = 657975744.

The previous prime is 1389060017. The next prime is 1389060131. The reversal of 1389060056 is 6500609831.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4569125 + ... + 4569428.

Almost surely, 2^1389060056 is an apocalyptic number.

It is an amenable number.

1389060056 is a deficient number, since it is larger than the sum of its proper divisors (1352506144).

1389060056 is a wasteful number, since it uses less digits than its factorization.

1389060056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9138578 (or 9138574 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 1389060056 is about 37270.0960020229. The cubic root of 1389060056 is about 1115.7674155492.

Adding to 1389060056 its reverse (6500609831), we get a palindrome (7889669887).

The spelling of 1389060056 in words is "one billion, three hundred eighty-nine million, sixty thousand, fifty-six".