404031231434 has 4 divisors (see below), whose sum is σ = 606046847154. Its totient is φ = 202015615716.

The previous prime is 404031231389. The next prime is 404031231437. The reversal of 404031231434 is 434132130404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 276512964025 + 127518267409 = 525845^2 + 357097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404031231397 and 404031231406.

It is not an unprimeable number, because it can be changed into a prime (404031231437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101007807857 + ... + 101007807860.

Almost surely, 2^404031231434 is an apocalyptic number.

404031231434 is a deficient number, since it is larger than the sum of its proper divisors (202015615720).

404031231434 is a wasteful number, since it uses less digits than its factorization.

404031231434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202015615719.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 404031231434 its reverse (434132130404), we get a palindrome (838163361838).

The spelling of 404031231434 in words is "four hundred four billion, thirty-one million, two hundred thirty-one thousand, four hundred thirty-four".