404221542344405 has 128 divisors (see below), whose sum is σ = 557491424256000. Its totient is φ = 279728831692800.

The previous prime is 404221542344357. The next prime is 404221542344407. The reversal of 404221542344405 is 504443245122404.

It is not a de Polignac number, because 404221542344405 - 2³² = 404217247377109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404221542344407) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1172568665 + ... + 1172913345.

It is an arithmetic number, because the mean of its divisors is an integer number (4355401752000).

Almost surely, 2^{404221542344405} is an apocalyptic number.

It is an amenable number.

404221542344405 is a deficient number, since it is larger than the sum of its proper divisors (153269881911595).

404221542344405 is a wasteful number, since it uses less digits than its factorization.

404221542344405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345015.

The product of its (nonzero) digits is 2457600, while the sum is 44.

Adding to 404221542344405 its reverse (504443245122404), we get a palindrome (908664787466809).

The spelling of 404221542344405 in words is "four hundred four trillion, two hundred twenty-one billion, five hundred forty-two million, three hundred forty-four thousand, four hundred five".