404343240402442 has 16 divisors (see below), whose sum is σ = 663910775129952. Its totient is φ = 183165104243920.

The previous prime is 404343240402341. The next prime is 404343240402467. The reversal of 404343240402442 is 244204042343404.

It is a super-2 number, since 2×404343240402442² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404343240402395 and 404343240402404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31363881268 + ... + 31363894159.

It is an arithmetic number, because the mean of its divisors is an integer number (41494423445622).

Almost surely, 2^{404343240402442} is an apocalyptic number.

404343240402442 is a deficient number, since it is larger than the sum of its proper divisors (259567534727510).

404343240402442 is a wasteful number, since it uses less digits than its factorization.

404343240402442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62727775733.

The product of its (nonzero) digits is 1179648, while the sum is 40.

Adding to 404343240402442 its reverse (244204042343404), we get a palindrome (648547282745846).

The spelling of 404343240402442 in words is "four hundred four trillion, three hundred forty-three billion, two hundred forty million, four hundred two thousand, four hundred forty-two".