204494 has 8 divisors (see below), whose sum is σ = 312120. Its totient is φ = 100456.

The previous prime is 204487. The next prime is 204509. The reversal of 204494 is 494402.

Added to its reverse (494402) it gives a square (698896 = 836²).

204494 = T₅₂ + T₅₃ + ... + T₁₁₀.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

204494 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 749 + ... + 984.

It is an arithmetic number, because the mean of its divisors is an integer number (39015).

2²⁰⁴⁴⁹⁴ is an apocalyptic number.

204494 is a deficient number, since it is larger than the sum of its proper divisors (107626).

204494 is a wasteful number, since it uses less digits than its factorization.

204494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 204494 is about 452.2101281484. The cubic root of 204494 is about 58.9151322189.

Adding to 204494 its reverse (494402), we get a palindrome (698896).

It can be divided in two parts, 20449 and 4, that multiplied together give a square (81796 = 286²).

The spelling of 204494 in words is "two hundred four thousand, four hundred ninety-four".