401433244422 has 128 divisors (see below), whose sum is σ = 948321561600. Its totient is φ = 110903869440.

The previous prime is 401433244397. The next prime is 401433244423. The reversal of 401433244422 is 224442334104.

It is a super-2 number, since 2×401433244422² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401433244423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121387293 + ... + 121390599.

It is an arithmetic number, because the mean of its divisors is an integer number (7408762200).

Almost surely, 2^401433244422 is an apocalyptic number.

401433244422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 401433244422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474160780800).

401433244422 is an abundant number, since it is smaller than the sum of its proper divisors (546888317178).

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

401433244422 is a wasteful number, since it uses less digits than its factorization.

401433244422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 401433244422 its reverse (224442334104), we get a palindrome (625875578526).

The spelling of 401433244422 in words is "four hundred one billion, four hundred thirty-three million, two hundred forty-four thousand, four hundred twenty-two".