204010244040 has 64 divisors (see below), whose sum is σ = 626264020800. Its totient is φ = 53137550592.

The previous prime is 204010244027. The next prime is 204010244063. The reversal of 204010244040 is 40442010402.

It is a junction number, because it is equal to n+sod(n) for n = 204010243998 and 204010244016.

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, 19763275 + ... + 19773594.

It is an arithmetic number, because the mean of its divisors is an integer number (9785375325).

Almost surely, 2^204010244040 is an apocalyptic number.

204010244040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204010244040 is an abundant number, since it is smaller than the sum of its proper divisors (422253776760).

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

204010244040 is a wasteful number, since it uses less digits than its factorization.

204010244040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39536926 (or 39536922 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 204010244040 its reverse (40442010402), we get a palindrome (244452254442).

The spelling of 204010244040 in words is "two hundred four billion, ten million, two hundred forty-four thousand, forty".