389642205 has 8 divisors (see below), whose sum is σ = 623427552. Its totient is φ = 207809168.

The previous prime is 389642179. The next prime is 389642213. The reversal of 389642205 is 502246983.

It is a happy number.

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 389642205 - 2¹⁰ = 389641181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12988059 + ... + 12988088.

It is an arithmetic number, because the mean of its divisors is an integer number (77928444).

Almost surely, 2^389642205 is an apocalyptic number.

It is an amenable number.

389642205 is a deficient number, since it is larger than the sum of its proper divisors (233785347).

389642205 is a wasteful number, since it uses less digits than its factorization.

389642205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25976155.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 389642205 is about 19739.3567524375. The cubic root of 389642205 is about 730.3908615550.

The spelling of 389642205 in words is "three hundred eighty-nine million, six hundred forty-two thousand, two hundred five".