389733641 has 8 divisors (see below), whose sum is σ = 430989024. Its totient is φ = 349449120.

The previous prime is 389733637. The next prime is 389733661. The reversal of 389733641 is 146337983.

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

It is a cyclic number.

It is not a de Polignac number, because 389733641 - 2² = 389733637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389733592 and 389733601.

It is not an unprimeable number, because it can be changed into a prime (389733661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241871 + ... + 243476.

It is an arithmetic number, because the mean of its divisors is an integer number (53873628).

Almost surely, 2^389733641 is an apocalyptic number.

It is an amenable number.

389733641 is a deficient number, since it is larger than the sum of its proper divisors (41255383).

389733641 is a wasteful number, since it uses less digits than its factorization.

389733641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485431.

The product of its digits is 326592, while the sum is 44.

The square root of 389733641 is about 19741.6727001539. The cubic root of 389733641 is about 730.4479898594.

The spelling of 389733641 in words is "three hundred eighty-nine million, seven hundred thirty-three thousand, six hundred forty-one".