444431422442 has 32 divisors (see below), whose sum is σ = 784571981952. Its totient is φ = 184825831104.

The previous prime is 444431422411. The next prime is 444431422447. The reversal of 444431422442 is 244224134444.

It is a super-2 number, since 2×444431422442² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444431422396 and 444431422405.

It is not an unprimeable number, because it can be changed into a prime (444431422447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956888 + ... + 1343315.

It is an arithmetic number, because the mean of its divisors is an integer number (24517874436).

Almost surely, 2^444431422442 is an apocalyptic number.

444431422442 is a deficient number, since it is larger than the sum of its proper divisors (340140559510).

444431422442 is a wasteful number, since it uses less digits than its factorization.

444431422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300622.

The product of its digits is 393216, while the sum is 38.

Adding to 444431422442 its reverse (244224134444), we get a palindrome (688655556886).

The spelling of 444431422442 in words is "four hundred forty-four billion, four hundred thirty-one million, four hundred twenty-two thousand, four hundred forty-two".