404021004342 has 16 divisors (see below), whose sum is σ = 808869084912. Its totient is φ = 134535822080.

The previous prime is 404021004337. The next prime is 404021004419. The reversal of 404021004342 is 243400120404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34455159 + ... + 34466882.

It is an arithmetic number, because the mean of its divisors is an integer number (50554317807).

Almost surely, 2^404021004342 is an apocalyptic number.

404021004342 is an abundant number, since it is smaller than the sum of its proper divisors (404848080570).

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

404021004342 is a wasteful number, since it uses less digits than its factorization.

404021004342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68923023.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 404021004342 its reverse (243400120404), we get a palindrome (647421124746).

The spelling of 404021004342 in words is "four hundred four billion, twenty-one million, four thousand, three hundred forty-two".