204421403032430 has 16 divisors (see below), whose sum is σ = 380646750474720. Its totient is φ = 78948955653792.

The previous prime is 204421403032421. The next prime is 204421403032433. The reversal of 204421403032430 is 34230304124402.

It is a super-2 number, since 2×204421403032430² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204421403032433) 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, 352450694594 + ... + 352450695173.

It is an arithmetic number, because the mean of its divisors is an integer number (23790421904670).

Almost surely, 2^{204421403032430} is an apocalyptic number.

204421403032430 is a deficient number, since it is larger than the sum of its proper divisors (176225347442290).

204421403032430 is a wasteful number, since it uses less digits than its factorization.

204421403032430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704901389803.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 204421403032430 its reverse (34230304124402), we get a palindrome (238651707156832).

The spelling of 204421403032430 in words is "two hundred four trillion, four hundred twenty-one billion, four hundred three million, thirty-two thousand, four hundred thirty".