204554340 has 72 divisors (see below), whose sum is σ = 633709440. Its totient is φ = 53385024.

The previous prime is 204554333. The next prime is 204554347. The reversal of 204554340 is 43455402.

It is an interprime number because it is at equal distance from previous prime (204554333) and next prime (204554347).

It is not an unprimeable number, because it can be changed into a prime (204554347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3630 + ... + 20549.

It is an arithmetic number, because the mean of its divisors is an integer number (8801520).

Almost surely, 2^204554340 is an apocalyptic number.

204554340 is a gapful number since it is divisible by the number (20) 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 204554340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316854720).

204554340 is an abundant number, since it is smaller than the sum of its proper divisors (429155100).

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

204554340 is a wasteful number, since it uses less digits than its factorization.

204554340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24241 (or 24236 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 204554340 is about 14302.2494734220. The cubic root of 204554340 is about 589.2092634076.

The spelling of 204554340 in words is "two hundred four million, five hundred fifty-four thousand, three hundred forty".