204744 has 32 divisors (see below), whose sum is σ = 540000. Its totient is φ = 64512.

The previous prime is 204733. The next prime is 204749. The reversal of 204744 is 447402.

It is a self number, because there is not a number n which added to its sum of digits gives 204744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204749) 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, 232 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (16875).

2²⁰⁴⁷⁴⁴ is an apocalyptic number.

204744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270000).

204744 is an abundant number, since it is smaller than the sum of its proper divisors (335256).

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

204744 is a wasteful number, since it uses less digits than its factorization.

204744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 204744 is about 452.4864638859. The cubic root of 204744 is about 58.9391309426.

The spelling of 204744 in words is "two hundred four thousand, seven hundred forty-four", and thus it is an iban number.