206005494 has 8 divisors (see below), whose sum is σ = 412011000. Its totient is φ = 68668496.

The previous prime is 206005493. The next prime is 206005511. The reversal of 206005494 is 494500602.

It is a sphenic number, since it is the product of 3 distinct primes.

206005494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206005493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17167119 + ... + 17167130.

It is an arithmetic number, because the mean of its divisors is an integer number (51501375).

Almost surely, 2^206005494 is an apocalyptic number.

206005494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

206005494 is a wasteful number, since it uses less digits than its factorization.

206005494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34334254.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 206005494 is about 14352.8914856903. The cubic root of 206005494 is about 590.5993086778.

The spelling of 206005494 in words is "two hundred six million, five thousand, four hundred ninety-four".