1389327048 has 24 divisors (see below), whose sum is σ = 3762760950. Its totient is φ = 463108992.

The previous prime is 1389327047. The next prime is 1389327053. The reversal of 1389327048 is 8407239831.

It can be written as a sum of positive squares in only one way, i.e., 1107691524 + 281635524 = 33282^2 + 16782^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1389326994 and 1389327012.

It is not an unprimeable number, because it can be changed into a prime (1389327047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9648033 + ... + 9648176.

Almost surely, 2^1389327048 is an apocalyptic number.

1389327048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1389327048 is an abundant number, since it is smaller than the sum of its proper divisors (2373433902).

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

1389327048 is a wasteful number, since it uses less digits than its factorization.

1389327048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19296221 (or 19296214 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 1389327048 is about 37273.6776827831. The cubic root of 1389327048 is about 1115.8388983931.

The spelling of 1389327048 in words is "one billion, three hundred eighty-nine million, three hundred twenty-seven thousand, forty-eight".