1389629204 has 12 divisors (see below), whose sum is σ = 2433112500. Its totient is φ = 694454208.

The previous prime is 1389629149. The next prime is 1389629231. The reversal of 1389629204 is 4029269831.

It can be written as a sum of positive squares in 2 ways, for example, as 1243267600 + 146361604 = 35260^2 + 12098^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81329 + ... + 96920.

It is an arithmetic number, because the mean of its divisors is an integer number (202759375).

Almost surely, 2^1389629204 is an apocalyptic number.

It is an amenable number.

1389629204 is a deficient number, since it is larger than the sum of its proper divisors (1043483296).

1389629204 is a wasteful number, since it uses less digits than its factorization.

1389629204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180202 (or 180200 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1389629204 is about 37277.7306712734. The cubic root of 1389629204 is about 1115.9197847904.

The spelling of 1389629204 in words is "one billion, three hundred eighty-nine million, six hundred twenty-nine thousand, two hundred four".