389589750 has 288 divisors, whose sum is σ = 1223468064. Its totient is φ = 92664000.

The previous prime is 389589727. The next prime is 389589769. The reversal of 389589750 is 57985983.

389589750 is a `hidden beast` number, since 3 + 8 + 9 + 589 + 7 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 7350724 + ... + 7350776.

It is an arithmetic number, because the mean of its divisors is an integer number (4248153).

Almost surely, 2^389589750 is an apocalyptic number.

389589750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 389589750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611734032).

389589750 is an abundant number, since it is smaller than the sum of its proper divisors (833878314).

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

389589750 is a wasteful number, since it uses less digits than its factorization.

389589750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 389589750 is about 19738.0280170031. The cubic root of 389589750 is about 730.3580841577.

The spelling of 389589750 in words is "three hundred eighty-nine million, five hundred eighty-nine thousand, seven hundred fifty".