404305542442231 has 16 divisors (see below), whose sum is σ = 418241239441984. Its totient is φ = 390536559212544.

The previous prime is 404305542442223. The next prime is 404305542442253. The reversal of 404305542442231 is 132244245503404.

It is a cyclic number.

It is not a de Polignac number, because 404305542442231 - 2³ = 404305542442223 is a prime.

It is a super-2 number, since 2×404305542442231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404305542442531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54651180 + ... + 61606513.

It is an arithmetic number, because the mean of its divisors is an integer number (26140077465124).

Almost surely, 2^{404305542442231} is an apocalyptic number.

404305542442231 is a deficient number, since it is larger than the sum of its proper divisors (13935696999753).

404305542442231 is a wasteful number, since it uses less digits than its factorization.

404305542442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116258410.

The product of its (nonzero) digits is 1843200, while the sum is 43.

Adding to 404305542442231 its reverse (132244245503404), we get a palindrome (536549787945635).

The spelling of 404305542442231 in words is "four hundred four trillion, three hundred five billion, five hundred forty-two million, four hundred forty-two thousand, two hundred thirty-one".