204206240 has 96 divisors (see below), whose sum is σ = 564931584. Its totient is φ = 68290560.

The previous prime is 204206203. The next prime is 204206251. The reversal of 204206240 is 42602402.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 43697 + ... + 48143.

It is an arithmetic number, because the mean of its divisors is an integer number (5884704).

Almost surely, 2^204206240 is an apocalyptic number.

204206240 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 204206240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282465792).

204206240 is an abundant number, since it is smaller than the sum of its proper divisors (360725344).

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

204206240 is a wasteful number, since it uses less digits than its factorization.

204206240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 204206240 is about 14290.0748773406. The cubic root of 204206240 is about 588.8748450167.

Adding to 204206240 its reverse (42602402), we get a palindrome (246808642).

The spelling of 204206240 in words is "two hundred four million, two hundred six thousand, two hundred forty".