422145306544 has 20 divisors (see below), whose sum is σ = 880822418896. Its totient is φ = 194836295232.

The previous prime is 422145306511. The next prime is 422145306547. The reversal of 422145306544 is 445603541224.

It is a junction number, because it is equal to n+sod(n) for n = 422145306497 and 422145306506.

It is not an unprimeable number, because it can be changed into a prime (422145306547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014772164 + ... + 1014772579.

Almost surely, 2^422145306544 is an apocalyptic number.

It is an amenable number.

422145306544 is an abundant number, since it is smaller than the sum of its proper divisors (458677112352).

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

422145306544 is a wasteful number, since it uses less digits than its factorization.

422145306544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029544764 (or 2029544758 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 422145306544 its reverse (445603541224), we get a palindrome (867748847768).

The spelling of 422145306544 in words is "four hundred twenty-two billion, one hundred forty-five million, three hundred six thousand, five hundred forty-four".