205070206 has 32 divisors (see below), whose sum is σ = 346705920. Its totient is φ = 90151200.

The previous prime is 205070191. The next prime is 205070207. The reversal of 205070206 is 602070502.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205070207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154815 + ... + 156133.

It is an arithmetic number, because the mean of its divisors is an integer number (10834560).

Almost surely, 2^205070206 is an apocalyptic number.

205070206 is a deficient number, since it is larger than the sum of its proper divisors (141635714).

205070206 is a wasteful number, since it uses less digits than its factorization.

205070206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 205070206 is about 14320.2725532722. The cubic root of 205070206 is about 589.7041569568.

The spelling of 205070206 in words is "two hundred five million, seventy thousand, two hundred six".