204402245124 has 96 divisors (see below), whose sum is σ = 596390086656. Its totient is φ = 52933870080.

The previous prime is 204402245123. The next prime is 204402245129. The reversal of 204402245124 is 421542204402.

It is a junction number, because it is equal to n+sod(n) for n = 204402245091 and 204402245100.

It is not an unprimeable number, because it can be changed into a prime (204402245123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16824 + ... + 639599.

It is an arithmetic number, because the mean of its divisors is an integer number (6212396736).

Almost surely, 2^204402245124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204402245124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298195043328).

204402245124 is an abundant number, since it is smaller than the sum of its proper divisors (391987841532).

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

204402245124 is a wasteful number, since it uses less digits than its factorization.

204402245124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656785 (or 656783 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 204402245124 its reverse (421542204402), we get a palindrome (625944449526).

The spelling of 204402245124 in words is "two hundred four billion, four hundred two million, two hundred forty-five thousand, one hundred twenty-four".