204414323440 has 80 divisors (see below), whose sum is σ = 496051964928. Its totient is φ = 78190979328.

The previous prime is 204414323437. The next prime is 204414323447. The reversal of 204414323440 is 44323414402.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204414323447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8789107 + ... + 8812333.

Almost surely, 2^204414323440 is an apocalyptic number.

204414323440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204414323440 is an abundant number, since it is smaller than the sum of its proper divisors (291637641488).

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

204414323440 is a wasteful number, since it uses less digits than its factorization.

204414323440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28046 (or 28040 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 204414323440 its reverse (44323414402), we get a palindrome (248737737842).

The spelling of 204414323440 in words is "two hundred four billion, four hundred fourteen million, three hundred twenty-three thousand, four hundred forty".