389960638 has 8 divisors (see below), whose sum is σ = 585230688. Its totient is φ = 194883744.

The previous prime is 389960633. The next prime is 389960639. The reversal of 389960638 is 836069983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389960633) 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, 43131 + ... + 51382.

It is an arithmetic number, because the mean of its divisors is an integer number (73153836).

Almost surely, 2^389960638 is an apocalyptic number.

389960638 is a deficient number, since it is larger than the sum of its proper divisors (195270050).

389960638 is a wasteful number, since it uses less digits than its factorization.

389960638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96578.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 389960638 is about 19747.4210468101. The cubic root of 389960638 is about 730.5897767141.

The spelling of 389960638 in words is "three hundred eighty-nine million, nine hundred sixty thousand, six hundred thirty-eight".