389525472 has 144 divisors (see below), whose sum is σ = 1293207552. Its totient is φ = 108898560.

The previous prime is 389525467. The next prime is 389525491. The reversal of 389525472 is 274525983.

389525472 is a `hidden beast` number, since 3 + 89 + 525 + 47 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

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, 92697 + ... + 96807.

It is an arithmetic number, because the mean of its divisors is an integer number (8980608).

Almost surely, 2^389525472 is an apocalyptic number.

389525472 is a gapful number since it is divisible by the number (32) 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 389525472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646603776).

389525472 is an abundant number, since it is smaller than the sum of its proper divisors (903682080).

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

389525472 is a wasteful number, since it uses less digits than its factorization.

389525472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4181 (or 4170 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 389525472 is about 19736.3996716726. The cubic root of 389525472 is about 730.3179149464.

The spelling of 389525472 in words is "three hundred eighty-nine million, five hundred twenty-five thousand, four hundred seventy-two".