389951568 has 120 divisors (see below), whose sum is σ = 1145551680. Its totient is φ = 123594240.

The previous prime is 389951567. The next prime is 389951609. The reversal of 389951568 is 865159983.

It is a happy number.

389951568 is a `hidden beast` number, since 38 + 99 + 515 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389951567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 930463 + ... + 930881.

It is an arithmetic number, because the mean of its divisors is an integer number (9546264).

Almost surely, 2^389951568 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 389951568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572775840).

389951568 is an abundant number, since it is smaller than the sum of its proper divisors (755600112).

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

389951568 is a wasteful number, since it uses less digits than its factorization.

389951568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 728 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The square root of 389951568 is about 19747.1913952339. The cubic root of 389951568 is about 730.5841124666.

The spelling of 389951568 in words is "three hundred eighty-nine million, nine hundred fifty-one thousand, five hundred sixty-eight".