389678580 has 96 divisors (see below), whose sum is σ = 1218940800. Its totient is φ = 103348224.

The previous prime is 389678557. The next prime is 389678591. The reversal of 389678580 is 85876983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 102351 + ... + 106089.

It is an arithmetic number, because the mean of its divisors is an integer number (12697300).

Almost surely, 2^389678580 is an apocalyptic number.

389678580 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 389678580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609470400).

389678580 is an abundant number, since it is smaller than the sum of its proper divisors (829262220).

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

389678580 is a wasteful number, since it uses less digits than its factorization.

389678580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950 (or 3942 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 389678580 is about 19740.2781135424. The cubic root of 389678580 is about 730.4135893640.

The spelling of 389678580 in words is "three hundred eighty-nine million, six hundred seventy-eight thousand, five hundred eighty".