404042221434 has 32 divisors (see below), whose sum is σ = 816164247744. Its totient is φ = 133334364800.

The previous prime is 404042221403. The next prime is 404042221459. The reversal of 404042221434 is 434122240404.

404042221434 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7805542 + ... + 7857134.

It is an arithmetic number, because the mean of its divisors is an integer number (25505132742).

Almost surely, 2^404042221434 is an apocalyptic number.

404042221434 is an abundant number, since it is smaller than the sum of its proper divisors (412122026310).

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

404042221434 is a wasteful number, since it uses less digits than its factorization.

404042221434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64622.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 404042221434 its reverse (434122240404), we get a palindrome (838164461838).

The spelling of 404042221434 in words is "four hundred four billion, forty-two million, two hundred twenty-one thousand, four hundred thirty-four".