389336220 has 480 divisors, whose sum is σ = 1593715200. Its totient is φ = 77262336.

The previous prime is 389336197. The next prime is 389336273. The reversal of 389336220 is 22633983.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2800911 + ... + 2801049.

It is an arithmetic number, because the mean of its divisors is an integer number (3320240).

Almost surely, 2^389336220 is an apocalyptic number.

389336220 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 389336220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796857600).

389336220 is an abundant number, since it is smaller than the sum of its proper divisors (1204378980).

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

389336220 is a wasteful number, since it uses less digits than its factorization.

389336220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 389336220 is about 19731.6045977006. The cubic root of 389336220 is about 730.1996201442.

The spelling of 389336220 in words is "three hundred eighty-nine million, three hundred thirty-six thousand, two hundred twenty".