340205225 has 6 divisors (see below), whose sum is σ = 421854510. Its totient is φ = 272164160.

The previous prime is 340205221. The next prime is 340205227. The reversal of 340205225 is 522502043.

It can be written as a sum of positive squares in 3 ways, for example, as 2968729 + 337236496 = 1723^2 + 18364^2 .

It is not a de Polignac number, because 340205225 - 2² = 340205221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340205225.

It is not an unprimeable number, because it can be changed into a prime (340205221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6804080 + ... + 6804129.

It is an arithmetic number, because the mean of its divisors is an integer number (70309085).

Almost surely, 2^340205225 is an apocalyptic number.

It is an amenable number.

340205225 is a deficient number, since it is larger than the sum of its proper divisors (81649285).

340205225 is a wasteful number, since it uses less digits than its factorization.

340205225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13608219 (or 13608214 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 340205225 is about 18444.6530192357. The cubic root of 340205225 is about 698.0936053150.

Adding to 340205225 its reverse (522502043), we get a palindrome (862707268).

The spelling of 340205225 in words is "three hundred forty million, two hundred five thousand, two hundred twenty-five".