204244401240 has 96 divisors (see below), whose sum is σ = 724139254800. Its totient is φ = 49513793280.

The previous prime is 204244401239. The next prime is 204244401247. The reversal of 204244401240 is 42104442402.

204244401240 is a `hidden beast` number, since 204 + 2 + 4 + 440 + 12 + 4 + 0 = 666.

It is a super-2 number, since 2×204244401240² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204244401247) 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, 25784475 + ... + 25792394.

Almost surely, 2^204244401240 is an apocalyptic number.

204244401240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204244401240 is an abundant number, since it is smaller than the sum of its proper divisors (519894853560).

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

204244401240 is a wasteful number, since it uses less digits than its factorization.

204244401240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51576897 (or 51576890 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 204244401240 its reverse (42104442402), we get a palindrome (246348843642).

The spelling of 204244401240 in words is "two hundred four billion, two hundred forty-four million, four hundred one thousand, two hundred forty".