389341240 has 64 divisors (see below), whose sum is σ = 945691200. Its totient is φ = 143818752.

The previous prime is 389341231. The next prime is 389341241. The reversal of 389341240 is 42143983.

It is a junction number, because it is equal to n+sod(n) for n = 389341196 and 389341205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389341241) 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, 19384 + ... + 33976.

It is an arithmetic number, because the mean of its divisors is an integer number (14776425).

Almost surely, 2^389341240 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 389341240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472845600).

389341240 is an abundant number, since it is smaller than the sum of its proper divisors (556349960).

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

389341240 is a wasteful number, since it uses less digits than its factorization.

389341240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14656 (or 14652 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 389341240 is about 19731.7318043805. The cubic root of 389341240 is about 730.2027584654.

The spelling of 389341240 in words is "three hundred eighty-nine million, three hundred forty-one thousand, two hundred forty".