40340221422 has 32 divisors (see below), whose sum is σ = 83563747200. Its totient is φ = 12967314528.

The previous prime is 40340221421. The next prime is 40340221447. The reversal of 40340221422 is 22412204304.

It is a junction number, because it is equal to n+sod(n) for n = 40340221392 and 40340221401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340221421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3729 + ... + 284067.

It is an arithmetic number, because the mean of its divisors is an integer number (2611367100).

Almost surely, 2^40340221422 is an apocalyptic number.

40340221422 is an abundant number, since it is smaller than the sum of its proper divisors (43223525778).

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

40340221422 is a wasteful number, since it uses less digits than its factorization.

40340221422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281200.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40340221422 its reverse (22412204304), we get a palindrome (62752425726).

The spelling of 40340221422 in words is "forty billion, three hundred forty million, two hundred twenty-one thousand, four hundred twenty-two".