404622742052 has 6 divisors (see below), whose sum is σ = 708089798598. Its totient is φ = 202311371024.

The previous prime is 404622741979. The next prime is 404622742087. The reversal of 404622742052 is 250247226404.

It can be written as a sum of positive squares in only one way, i.e., 401317182016 + 3305560036 = 633496^2 + 57494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404622741997 and 404622742015.

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 as a sum of consecutive naturals, namely, 50577842753 + ... + 50577842760.

It is an arithmetic number, because the mean of its divisors is an integer number (118014966433).

Almost surely, 2^404622742052 is an apocalyptic number.

It is an amenable number.

404622742052 is a deficient number, since it is larger than the sum of its proper divisors (303467056546).

404622742052 is a wasteful number, since it uses less digits than its factorization.

404622742052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101155685517 (or 101155685515 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 38.

Adding to 404622742052 its reverse (250247226404), we get a palindrome (654869968456).

The spelling of 404622742052 in words is "four hundred four billion, six hundred twenty-two million, seven hundred forty-two thousand, fifty-two".