206286172 has 24 divisors (see below), whose sum is σ = 377256096. Its totient is φ = 98512128.

The previous prime is 206286167. The next prime is 206286181. The reversal of 206286172 is 271682602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85008 + ... + 87400.

It is an arithmetic number, because the mean of its divisors is an integer number (15719004).

Almost surely, 2^206286172 is an apocalyptic number.

It is an amenable number.

206286172 is a deficient number, since it is larger than the sum of its proper divisors (170969924).

206286172 is a wasteful number, since it uses less digits than its factorization.

206286172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357 (or 3355 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 206286172 is about 14362.6659085283. The cubic root of 206286172 is about 590.8674131853.

The spelling of 206286172 in words is "two hundred six million, two hundred eighty-six thousand, one hundred seventy-two".