239428205 has 8 divisors (see below), whose sum is σ = 297221400. Its totient is φ = 184937536.

The previous prime is 239428169. The next prime is 239428207. The reversal of 239428205 is 502824932.

239428205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 105308644 + 134119561 = 10262^2 + 11581^2 .

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 239428205 - 2⁶ = 239428141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239428207) 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, 825470 + ... + 825759.

It is an arithmetic number, because the mean of its divisors is an integer number (37152675).

Almost surely, 2^239428205 is an apocalyptic number.

It is an amenable number.

239428205 is a deficient number, since it is larger than the sum of its proper divisors (57793195).

239428205 is a wasteful number, since it uses less digits than its factorization.

239428205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651263.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 239428205 is about 15473.4677755182. The cubic root of 239428205 is about 620.9525809505.

The spelling of 239428205 in words is "two hundred thirty-nine million, four hundred twenty-eight thousand, two hundred five".