204442040 has 64 divisors (see below), whose sum is σ = 504252000. Its totient is φ = 73981440.

The previous prime is 204442013. The next prime is 204442097. The reversal of 204442040 is 40244402.

204442040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 99746 + ... + 101774.

Almost surely, 2^204442040 is an apocalyptic number.

204442040 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 204442040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252126000).

204442040 is an abundant number, since it is smaller than the sum of its proper divisors (299809960).

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

204442040 is a wasteful number, since it uses less digits than its factorization.

204442040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 204442040 is about 14298.3229785874. The cubic root of 204442040 is about 589.1014186938.

Adding to 204442040 its reverse (40244402), we get a palindrome (244686442).

It can be divided in two parts, 204 and 442040, that added together give a palindrome (442244).

The spelling of 204442040 in words is "two hundred four million, four hundred forty-two thousand, forty".