208564070 has 48 divisors (see below), whose sum is σ = 444422160. Its totient is φ = 70002240.

The previous prime is 208564043. The next prime is 208564073. The reversal of 208564070 is 70465802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208564073) 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 23 ways as a sum of consecutive naturals, for example, 9101 + ... + 22359.

It is an arithmetic number, because the mean of its divisors is an integer number (9258795).

Almost surely, 2^208564070 is an apocalyptic number.

208564070 is an abundant number, since it is smaller than the sum of its proper divisors (235858090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208564070 is a wasteful number, since it uses less digits than its factorization.

208564070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13301 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 208564070 is about 14441.7474704414. The cubic root of 208564070 is about 593.0343248561.

The spelling of 208564070 in words is "two hundred eight million, five hundred sixty-four thousand, seventy".