404040226631 has 2 divisors, whose sum is σ = 404040226632. Its totient is φ = 404040226630.

The previous prime is 404040226573. The next prime is 404040226633. The reversal of 404040226631 is 136622040404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404040226631 - 2³⁴ = 386860357447 is a prime.

It is a super-2 number, since 2×404040226631² (a number of 24 digits) contains 22 as substring.

Together with 404040226633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404040226633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202020113315 + 202020113316.

It is an arithmetic number, because the mean of its divisors is an integer number (202020113316).

Almost surely, 2^404040226631 is an apocalyptic number.

404040226631 is a deficient number, since it is larger than the sum of its proper divisors (1).

404040226631 is an equidigital number, since it uses as much as digits as its factorization.

404040226631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 404040226631 in words is "four hundred four billion, forty million, two hundred twenty-six thousand, six hundred thirty-one".