206142898 has 8 divisors (see below), whose sum is σ = 333000108. Its totient is φ = 95142864.

The previous prime is 206142889. The next prime is 206142899. The reversal of 206142898 is 898241602.

It can be written as a sum of positive squares in 2 ways, for example, as 190909489 + 15233409 = 13817^2 + 3903^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 206142898.

It is not an unprimeable number, because it can be changed into a prime (206142899) 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, 3964261 + ... + 3964312.

Almost surely, 2^206142898 is an apocalyptic number.

206142898 is a deficient number, since it is larger than the sum of its proper divisors (126857210).

206142898 is a wasteful number, since it uses less digits than its factorization.

206142898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928588.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 206142898 is about 14357.6773191209. The cubic root of 206142898 is about 590.7305878171.

The spelling of 206142898 in words is "two hundred six million, one hundred forty-two thousand, eight hundred ninety-eight".