204243400322 has 32 divisors (see below), whose sum is σ = 349388638704. Its totient is φ = 88708608000.

The previous prime is 204243400313. The next prime is 204243400351. The reversal of 204243400322 is 223004342402.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 155702057281 + 48541343041 = 394591^2 + 220321^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 204243400291 and 204243400300.

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, 3552122 + ... + 3609162.

Almost surely, 2^204243400322 is an apocalyptic number.

204243400322 is a deficient number, since it is larger than the sum of its proper divisors (145145238382).

204243400322 is a wasteful number, since it uses less digits than its factorization.

204243400322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65174.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 204243400322 its reverse (223004342402), we get a palindrome (427247742724).

The spelling of 204243400322 in words is "two hundred four billion, two hundred forty-three million, four hundred thousand, three hundred twenty-two".