4020404312234 has 8 divisors (see below), whose sum is σ = 6031574637060. Its totient is φ = 2009879433216.

The previous prime is 4020404312233. The next prime is 4020404312257. The reversal of 4020404312234 is 4322134040204.

It can be written as a sum of positive squares in 2 ways, for example, as 3454895800225 + 565508512009 = 1858735^2 + 752003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 4020404312197 and 4020404312206.

It is not an unprimeable number, because it can be changed into a prime (4020404312233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161345879 + ... + 161370794.

Almost surely, 2^{4020404312234} is an apocalyptic number.

4020404312234 is a deficient number, since it is larger than the sum of its proper divisors (2011170324826).

4020404312234 is a wasteful number, since it uses less digits than its factorization.

4020404312234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322722904.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 4020404312234 its reverse (4322134040204), we get a palindrome (8342538352438).

The spelling of 4020404312234 in words is "four trillion, twenty billion, four hundred four million, three hundred twelve thousand, two hundred thirty-four".