1389205014 has 64 divisors (see below), whose sum is σ = 3080747520. Its totient is φ = 415388160.

The previous prime is 1389204979. The next prime is 1389205021. The reversal of 1389205014 is 4105029831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775632 + ... + 777420.

It is an arithmetic number, because the mean of its divisors is an integer number (48136680).

Almost surely, 2^1389205014 is an apocalyptic number.

1389205014 is an abundant number, since it is smaller than the sum of its proper divisors (1691542506).

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

1389205014 is a wasteful number, since it uses less digits than its factorization.

1389205014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1389205014 is about 37272.0406471124. The cubic root of 1389205014 is about 1115.8062268750.

It can be divided in two parts, 1389 and 205014, that added together give a triangular number (206403 = T₆₄₂).

The spelling of 1389205014 in words is "one billion, three hundred eighty-nine million, two hundred five thousand, fourteen".