389022265 has 4 divisors (see below), whose sum is σ = 466826724. Its totient is φ = 311217808.

The previous prime is 389022251. The next prime is 389022287. The reversal of 389022265 is 562220983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562220983 = 3767 ⋅149249.

It can be written as a sum of positive squares in 2 ways, for example, as 65885689 + 323136576 = 8117^2 + 17976^2 .

It is a cyclic number.

It is not a de Polignac number, because 389022265 - 2⁵ = 389022233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38902222 + ... + 38902231.

It is an arithmetic number, because the mean of its divisors is an integer number (116706681).

Almost surely, 2^389022265 is an apocalyptic number.

It is an amenable number.

389022265 is a deficient number, since it is larger than the sum of its proper divisors (77804459).

389022265 is an equidigital number, since it uses as much as digits as its factorization.

389022265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77804458.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 389022265 is about 19723.6473553955. The cubic root of 389022265 is about 730.0032932859.

The spelling of 389022265 in words is "three hundred eighty-nine million, twenty-two thousand, two hundred sixty-five".