205404222 has 16 divisors (see below), whose sum is σ = 410965632. Its totient is φ = 68441880.

The previous prime is 205404197. The next prime is 205404223. The reversal of 205404222 is 222404502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205404223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16897 + ... + 26387.

It is an arithmetic number, because the mean of its divisors is an integer number (25685352).

Almost surely, 2^205404222 is an apocalyptic number.

205404222 is an abundant number, since it is smaller than the sum of its proper divisors (205561410).

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

205404222 is a wasteful number, since it uses less digits than its factorization.

205404222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 205404222 is about 14331.9301561234. The cubic root of 205404222 is about 590.0241510750.

Adding to 205404222 its reverse (222404502), we get a palindrome (427808724).

The spelling of 205404222 in words is "two hundred five million, four hundred four thousand, two hundred twenty-two".