404442222042 has 64 divisors (see below), whose sum is σ = 842378503680. Its totient is φ = 129338187264.

The previous prime is 404442222017. The next prime is 404442222043. The reversal of 404442222042 is 240222244404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (404442222043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13541958 + ... + 13571790.

It is an arithmetic number, because the mean of its divisors is an integer number (13162164120).

Almost surely, 2^404442222042 is an apocalyptic number.

404442222042 is an abundant number, since it is smaller than the sum of its proper divisors (437936281638).

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

404442222042 is a wasteful number, since it uses less digits than its factorization.

404442222042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30727.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 404442222042 its reverse (240222244404), we get a palindrome (644664466446).

The spelling of 404442222042 in words is "four hundred four billion, four hundred forty-two million, two hundred twenty-two thousand, forty-two".