204040400020234 has 16 divisors (see below), whose sum is σ = 309033070032960. Its totient is φ = 101029383136800.

The previous prime is 204040400020217. The next prime is 204040400020291. The reversal of 204040400020234 is 432020004040402.

It is a junction number, because it is equal to n+sod(n) for n = 204040400020199 and 204040400020208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69224862 + ... + 72112150.

It is an arithmetic number, because the mean of its divisors is an integer number (19314566877060).

Almost surely, 2^{204040400020234} is an apocalyptic number.

204040400020234 is a deficient number, since it is larger than the sum of its proper divisors (104992670012726).

204040400020234 is a wasteful number, since it uses less digits than its factorization.

204040400020234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230445.

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 204040400020234 its reverse (432020004040402), we get a palindrome (636060404060636).

The spelling of 204040400020234 in words is "two hundred four trillion, forty billion, four hundred million, twenty thousand, two hundred thirty-four".