204420594 has 64 divisors (see below), whose sum is σ = 486892800. Its totient is φ = 55980288.

The previous prime is 204420589. The next prime is 204420649. The reversal of 204420594 is 495024402.

204420594 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190692 + ... + 191760.

It is an arithmetic number, because the mean of its divisors is an integer number (7607700).

Almost surely, 2^204420594 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204420594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243446400).

204420594 is an abundant number, since it is smaller than the sum of its proper divisors (282472206).

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

204420594 is a wasteful number, since it uses less digits than its factorization.

204420594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 204420594 is about 14297.5730108295. The cubic root of 204420594 is about 589.0808190317.

Adding to 204420594 its reverse (495024402), we get a palindrome (699444996).

The spelling of 204420594 in words is "two hundred four million, four hundred twenty thousand, five hundred ninety-four".