1389603404 has 12 divisors (see below), whose sum is σ = 2779206864. Its totient is φ = 595544304.

The previous prime is 1389603401. The next prime is 1389603407. The reversal of 1389603404 is 4043069831.

It is an interprime number because it is at equal distance from previous prime (1389603401) and next prime (1389603407).

1389603404 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1389603401) 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, 24814319 + ... + 24814374.

It is an arithmetic number, because the mean of its divisors is an integer number (231600572).

Almost surely, 2^1389603404 is an apocalyptic number.

1389603404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1389603404 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.

1389603404 is a wasteful number, since it uses less digits than its factorization.

1389603404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49628704 (or 49628702 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 1389603404 is about 37277.3846185593. The cubic root of 1389603404 is about 1115.9128786535.

The spelling of 1389603404 in words is "one billion, three hundred eighty-nine million, six hundred three thousand, four hundred four".