204634122 has 64 divisors (see below), whose sum is σ = 511792128. Its totient is φ = 52992000.

The previous prime is 204634091. The next prime is 204634139. The reversal of 204634122 is 221436402.

It is a junction number, because it is equal to n+sod(n) for n = 204634092 and 204634101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295797 + ... + 296487.

It is an arithmetic number, because the mean of its divisors is an integer number (7996752).

Almost surely, 2^204634122 is an apocalyptic number.

204634122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 204634122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255896064).

204634122 is an abundant number, since it is smaller than the sum of its proper divisors (307158006).

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

204634122 is a wasteful number, since it uses less digits than its factorization.

204634122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 204634122 is about 14305.0383431852. The cubic root of 204634122 is about 589.2858562308.

The spelling of 204634122 in words is "two hundred four million, six hundred thirty-four thousand, one hundred twenty-two".