404442423122 has 4 divisors (see below), whose sum is σ = 606663634686. Its totient is φ = 202221211560.

The previous prime is 404442423113. The next prime is 404442423169. The reversal of 404442423122 is 221324244404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 358272876481 + 46169546641 = 598559^2 + 214871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110605779 + ... + 101110605782.

Almost surely, 2^404442423122 is an apocalyptic number.

404442423122 is a deficient number, since it is larger than the sum of its proper divisors (202221211564).

404442423122 is a wasteful number, since it uses less digits than its factorization.

404442423122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202221211563.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 404442423122 its reverse (221324244404), we get a palindrome (625766667526).

The spelling of 404442423122 in words is "four hundred four billion, four hundred forty-two million, four hundred twenty-three thousand, one hundred twenty-two".