389412645 has 8 divisors (see below), whose sum is σ = 623060256. Its totient is φ = 207686736.

The previous prime is 389412641. The next prime is 389412689. The reversal of 389412645 is 546214983.

389412645 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 389412645 - 2² = 389412641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389412597 and 389412606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389412641) 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, 12980407 + ... + 12980436.

It is an arithmetic number, because the mean of its divisors is an integer number (77882532).

Almost surely, 2^389412645 is an apocalyptic number.

It is an amenable number.

389412645 is a deficient number, since it is larger than the sum of its proper divisors (233647611).

389412645 is a wasteful number, since it uses less digits than its factorization.

389412645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25960851.

The product of its digits is 207360, while the sum is 42.

The square root of 389412645 is about 19733.5411165862. The cubic root of 389412645 is about 730.2473953507.

The spelling of 389412645 in words is "three hundred eighty-nine million, four hundred twelve thousand, six hundred forty-five".