389266560 has 192 divisors, whose sum is σ = 1394527680. Its totient is φ = 103762944.

The previous prime is 389266543. The next prime is 389266589. The reversal of 389266560 is 65662983.

It is a happy number.

389266560 is a `hidden beast` number, since 3 + 89 + 2 + 6 + 6 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154269 + ... + 156771.

It is an arithmetic number, because the mean of its divisors is an integer number (7263165).

Almost surely, 2^389266560 is an apocalyptic number.

389266560 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 389266560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697263840).

389266560 is an abundant number, since it is smaller than the sum of its proper divisors (1005261120).

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

389266560 is an equidigital number, since it uses as much as digits as its factorization.

389266560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 389266560 is about 19729.8393303139. The cubic root of 389266560 is about 730.1560684641.

The spelling of 389266560 in words is "three hundred eighty-nine million, two hundred sixty-six thousand, five hundred sixty".