389944087239 has 64 divisors (see below), whose sum is σ = 606895027200. Its totient is φ = 218121784320.

The previous prime is 389944087231. The next prime is 389944087243. The reversal of 389944087239 is 932780449983.

It is not a de Polignac number, because 389944087239 - 2³ = 389944087231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389944087239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389944087231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119723299 + ... + 119726555.

It is an arithmetic number, because the mean of its divisors is an integer number (9482734800).

Almost surely, 2^389944087239 is an apocalyptic number.

389944087239 is a deficient number, since it is larger than the sum of its proper divisors (216950939961).

389944087239 is a wasteful number, since it uses less digits than its factorization.

389944087239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960.

The product of its (nonzero) digits is 94058496, while the sum is 66.

The spelling of 389944087239 in words is "three hundred eighty-nine billion, nine hundred forty-four million, eighty-seven thousand, two hundred thirty-nine".