204223434442 has 16 divisors (see below), whose sum is σ = 306832932864. Its totient is φ = 101945844000.

The previous prime is 204223434433. The next prime is 204223434449. The reversal of 204223434442 is 244434322402.

It is a super-2 number, since 2×204223434442² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204223434398 and 204223434407.

It is not an unprimeable number, because it can be changed into a prime (204223434449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11310942 + ... + 11328982.

It is an arithmetic number, because the mean of its divisors is an integer number (19177058304).

Almost surely, 2^204223434442 is an apocalyptic number.

204223434442 is a deficient number, since it is larger than the sum of its proper divisors (102609498422).

204223434442 is a wasteful number, since it uses less digits than its factorization.

204223434442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26925.

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 204223434442 its reverse (244434322402), we get a palindrome (448657756844).

The spelling of 204223434442 in words is "two hundred four billion, two hundred twenty-three million, four hundred thirty-four thousand, four hundred forty-two".