206564334 has 32 divisors (see below), whose sum is σ = 432566784. Its totient is φ = 65635680.

The previous prime is 206564329. The next prime is 206564363. The reversal of 206564334 is 433465602.

It is a junction number, because it is equal to n+sod(n) for n = 206564295 and 206564304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40512 + ... + 45324.

It is an arithmetic number, because the mean of its divisors is an integer number (13517712).

Almost surely, 2^206564334 is an apocalyptic number.

206564334 is an abundant number, since it is smaller than the sum of its proper divisors (226002450).

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

206564334 is a wasteful number, since it uses less digits than its factorization.

206564334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152.

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 206564334 is about 14372.3461550298. The cubic root of 206564334 is about 591.1328745758.

The spelling of 206564334 in words is "two hundred six million, five hundred sixty-four thousand, three hundred thirty-four".