389305466880 has 576 divisors, whose sum is σ = 1391564095488. Its totient is φ = 92127887360.

The previous prime is 389305466863. The next prime is 389305466903. The reversal of 389305466880 is 88664503983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1016463169 + ... + 1016463551.

It is an arithmetic number, because the mean of its divisors is an integer number (2415909888).

Almost surely, 2^389305466880 is an apocalyptic number.

389305466880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389305466880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695782047744).

389305466880 is an abundant number, since it is smaller than the sum of its proper divisors (1002258628608).

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

389305466880 is an equidigital number, since it uses as much as digits as its factorization.

389305466880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 389305466880 in words is "three hundred eighty-nine billion, three hundred five million, four hundred sixty-six thousand, eight hundred eighty".