204402 has 32 divisors (see below), whose sum is σ = 472320. Its totient is φ = 58320.

The previous prime is 204397. The next prime is 204427.

204402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (14760).

2²⁰⁴⁴⁰² is an apocalyptic number.

204402 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 204402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236160).

204402 is an abundant number, since it is smaller than the sum of its proper divisors (267918).

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

204402 is a wasteful number, since it uses less digits than its factorization.

204402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 204402 is about 452.1083940827. The cubic root of 204402 is about 58.9062957653.

It can be divided in two parts, 204 and 402, that added together give a palindrome (606).

The spelling of 204402 in words is "two hundred four thousand, four hundred two", and thus it is an iban number.