445231132444422 has 40 divisors (see below), whose sum is σ = 997659054608832. Its totient is φ = 148408664194800.

The previous prime is 445231132444421. The next prime is 445231132444453. The reversal of 445231132444422 is 224444231132544.

445231132444422 is a `hidden beast` number, since 4 + 4 + 5 + 2 + 31 + 132 + 44 + 442 + 2 = 666.

It is a super-2 number, since 2×445231132444422² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445231132444421) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1748854 + ... + 29891817.

Almost surely, 2^{445231132444422} is an apocalyptic number.

445231132444422 is an abundant number, since it is smaller than the sum of its proper divisors (552427922164410).

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

445231132444422 is a wasteful number, since it uses less digits than its factorization.

445231132444422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31727546 (or 31727537 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 45.

Adding to 445231132444422 its reverse (224444231132544), we get a palindrome (669675363576966).

The spelling of 445231132444422 in words is "four hundred forty-five trillion, two hundred thirty-one billion, one hundred thirty-two million, four hundred forty-four thousand, four hundred twenty-two".