204030304240 has 120 divisors (see below), whose sum is σ = 553562819712. Its totient is φ = 69732149760.

The previous prime is 204030304229. The next prime is 204030304253. The reversal of 204030304240 is 42403030402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1160545 + ... + 1324735.

Almost surely, 2^204030304240 is an apocalyptic number.

204030304240 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 204030304240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276781409856).

204030304240 is an abundant number, since it is smaller than the sum of its proper divisors (349532515472).

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

204030304240 is a wasteful number, since it uses less digits than its factorization.

204030304240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164535 (or 164522 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 204030304240 its reverse (42403030402), we get a palindrome (246433334642).

The spelling of 204030304240 in words is "two hundred four billion, thirty million, three hundred four thousand, two hundred forty".