389240303 has 4 divisors (see below), whose sum is σ = 389960328. Its totient is φ = 388520280.

The previous prime is 389240273. The next prime is 389240317. The reversal of 389240303 is 303042983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389240303 - 2⁶ = 389240239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389240303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389240353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359201 + ... + 360282.

It is an arithmetic number, because the mean of its divisors is an integer number (97490082).

Almost surely, 2^389240303 is an apocalyptic number.

389240303 is a deficient number, since it is larger than the sum of its proper divisors (720025).

389240303 is an equidigital number, since it uses as much as digits as its factorization.

389240303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720024.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 389240303 is about 19729.1739056657. The cubic root of 389240303 is about 730.1396511459.

The spelling of 389240303 in words is "three hundred eighty-nine million, two hundred forty thousand, three hundred three".