206226642 has 16 divisors (see below), whose sum is σ = 413411040. Its totient is φ = 68582592.

The previous prime is 206226607. The next prime is 206226661. The reversal of 206226642 is 246622602.

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, 37092 + ... + 42287.

It is an arithmetic number, because the mean of its divisors is an integer number (25838190).

Almost surely, 2^206226642 is an apocalyptic number.

206226642 is an abundant number, since it is smaller than the sum of its proper divisors (207184398).

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

206226642 is a wasteful number, since it uses less digits than its factorization.

206226642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79817.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 206226642 is about 14360.5933721417. The cubic root of 206226642 is about 590.8105702716.

The spelling of 206226642 in words is "two hundred six million, two hundred twenty-six thousand, six hundred forty-two".