404004423431031 has 8 divisors (see below), whose sum is σ = 539092418488320. Its totient is φ = 269126355330552.

The previous prime is 404004423431003. The next prime is 404004423431113. The reversal of 404004423431031 is 130134324400404.

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

It is not a de Polignac number, because 404004423431031 - 2⁷ = 404004423430903 is a prime.

It is a super-2 number, since 2×404004423431031² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404004423430983 and 404004423431001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404004423435031) 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, 52481734711 + ... + 52481742408.

It is an arithmetic number, because the mean of its divisors is an integer number (67386552311040).

Almost surely, 2^{404004423431031} is an apocalyptic number.

404004423431031 is a deficient number, since it is larger than the sum of its proper divisors (135087995057289).

404004423431031 is a wasteful number, since it uses less digits than its factorization.

404004423431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104963478405.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 404004423431031 its reverse (130134324400404), we get a palindrome (534138747831435).

The spelling of 404004423431031 in words is "four hundred four trillion, four billion, four hundred twenty-three million, four hundred thirty-one thousand, thirty-one".