389508552 has 144 divisors (see below), whose sum is σ = 1126694400. Its totient is φ = 121417920.

The previous prime is 389508551. The next prime is 389508563. The reversal of 389508552 is 255805983.

389508552 is a `hidden beast` number, since 3 + 8 + 95 + 0 + 8 + 552 = 666.

It is a super-2 number, since 2×389508552² = 303433824162273408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 389508498 and 389508507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389508551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4930449 + ... + 4930527.

Almost surely, 2^389508552 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 389508552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563347200).

389508552 is an abundant number, since it is smaller than the sum of its proper divisors (737185848).

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

389508552 is a wasteful number, since it uses less digits than its factorization.

389508552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The square root of 389508552 is about 19735.9710174088. The cubic root of 389508552 is about 730.3073404064.

The spelling of 389508552 in words is "three hundred eighty-nine million, five hundred eight thousand, five hundred fifty-two".