1389300436 has 12 divisors (see below), whose sum is σ = 2447594100. Its totient is φ = 689987840.

The previous prime is 1389300377. The next prime is 1389300439. The reversal of 1389300436 is 6340039831.

It can be written as a sum of positive squares in 2 ways, for example, as 657922500 + 731377936 = 25650^2 + 27044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1389300395 and 1389300404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389300439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164925 + ... + 1166116.

It is an arithmetic number, because the mean of its divisors is an integer number (203966175).

Almost surely, 2^1389300436 is an apocalyptic number.

It is an amenable number.

1389300436 is a deficient number, since it is larger than the sum of its proper divisors (1058293664).

1389300436 is a wasteful number, since it uses less digits than its factorization.

1389300436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331194 (or 2331192 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1389300436 is about 37273.3206999323. The cubic root of 1389300436 is about 1115.8317738660.

The spelling of 1389300436 in words is "one billion, three hundred eighty-nine million, three hundred thousand, four hundred thirty-six".