404010521555442 has 16 divisors (see below), whose sum is σ = 808021598166432. Its totient is φ = 134670081342560.

The previous prime is 404010521555437. The next prime is 404010521555483. The reversal of 404010521555442 is 244555125010404.

It is a junction number, because it is equal to n+sod(n) for n = 404010521555394 and 404010521555403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13346784 + ... + 31403147.

It is an arithmetic number, because the mean of its divisors is an integer number (50501349885402).

Almost surely, 2^{404010521555442} is an apocalyptic number.

404010521555442 is an abundant number, since it is smaller than the sum of its proper divisors (404011076610990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404010521555442 is a wasteful number, since it uses less digits than its factorization.

404010521555442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46254633.

The product of its (nonzero) digits is 640000, while the sum is 42.

Adding to 404010521555442 its reverse (244555125010404), we get a palindrome (648565646565846).

The spelling of 404010521555442 in words is "four hundred four trillion, ten billion, five hundred twenty-one million, five hundred fifty-five thousand, four hundred forty-two".