389724160 has 96 divisors (see below), whose sum is σ = 1068893280. Its totient is φ = 133595136.

The previous prime is 389724131. The next prime is 389724161. The reversal of 389724160 is 61427983.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389724161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68962 + ... + 74398.

It is an arithmetic number, because the mean of its divisors is an integer number (11134305).

Almost surely, 2^389724160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389724160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534446640).

389724160 is an abundant number, since it is smaller than the sum of its proper divisors (679169120).

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

389724160 is an equidigital number, since it uses as much as digits as its factorization.

389724160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471 (or 5451 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 389724160 is about 19741.4325721311. The cubic root of 389724160 is about 730.4420666400.

The spelling of 389724160 in words is "three hundred eighty-nine million, seven hundred twenty-four thousand, one hundred sixty".