206404842 has 32 divisors (see below), whose sum is σ = 474038784. Its totient is φ = 58690800.

The previous prime is 206404841. The next prime is 206404867. The reversal of 206404842 is 248404602.

It is not an unprimeable number, because it can be changed into a prime (206404841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2784 + ... + 20507.

It is an arithmetic number, because the mean of its divisors is an integer number (14813712).

Almost surely, 2^206404842 is an apocalyptic number.

206404842 is an abundant number, since it is smaller than the sum of its proper divisors (267633942).

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

206404842 is a wasteful number, since it uses less digits than its factorization.

206404842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23514.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 206404842 is about 14366.7965114009. The cubic root of 206404842 is about 590.9806939963.

The spelling of 206404842 in words is "two hundred six million, four hundred four thousand, eight hundred forty-two".