389045760 has 160 divisors (see below), whose sum is σ = 1255098240. Its totient is φ = 102801408.

The previous prime is 389045749. The next prime is 389045773. The reversal of 389045760 is 67540983.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1374579 + ... + 1374861.

It is an arithmetic number, because the mean of its divisors is an integer number (7844364).

Almost surely, 2^389045760 is an apocalyptic number.

389045760 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 389045760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627549120).

389045760 is an abundant number, since it is smaller than the sum of its proper divisors (866052480).

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

389045760 is a wasteful number, since it uses less digits than its factorization.

389045760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 389045760 is about 19724.2429512516. The cubic root of 389045760 is about 730.0179891733.

The spelling of 389045760 in words is "three hundred eighty-nine million, forty-five thousand, seven hundred sixty".