404223123434 has 16 divisors (see below), whose sum is σ = 670623811368. Its totient is φ = 181522233792.

The previous prime is 404223123341. The next prime is 404223123439. The reversal of 404223123434 is 434321322404.

It can be written as a sum of positive squares in 4 ways, for example, as 317582967025 + 86640156409 = 563545^2 + 294347^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404223123434.

It is not an unprimeable number, because it can be changed into a prime (404223123439) 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, 210094217 + ... + 210096140.

Almost surely, 2^404223123434 is an apocalyptic number.

404223123434 is a deficient number, since it is larger than the sum of its proper divisors (266400687934).

404223123434 is a wasteful number, since it uses less digits than its factorization.

404223123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420190409.

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

Adding to 404223123434 its reverse (434321322404), we get a palindrome (838544445838).

The spelling of 404223123434 in words is "four hundred four billion, two hundred twenty-three million, one hundred twenty-three thousand, four hundred thirty-four".