389089752 has 64 divisors (see below), whose sum is σ = 1059264000. Its totient is φ = 118629504.

The previous prime is 389089751. The next prime is 389089759. The reversal of 389089752 is 257980983.

It is a super-2 number, since 2×389089752² = 302781670222843008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 389089695 and 389089704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389089751) 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 15 ways as a sum of consecutive naturals, for example, 1488 + ... + 27935.

It is an arithmetic number, because the mean of its divisors is an integer number (16551000).

Almost surely, 2^389089752 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 389089752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529632000).

389089752 is an abundant number, since it is smaller than the sum of its proper divisors (670174248).

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

389089752 is a wasteful number, since it uses less digits than its factorization.

389089752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29480 (or 29476 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 389089752 is about 19725.3580956088. The cubic root of 389089752 is about 730.0455041379.

The spelling of 389089752 in words is "three hundred eighty-nine million, eighty-nine thousand, seven hundred fifty-two".