40320220422 has 8 divisors (see below), whose sum is σ = 80640440856. Its totient is φ = 13440073472.

The previous prime is 40320220399. The next prime is 40320220429. The reversal of 40320220422 is 22402202304.

It is a sphenic number, since it is the product of 3 distinct primes.

40320220422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320220429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3360018363 + ... + 3360018374.

It is an arithmetic number, because the mean of its divisors is an integer number (10080055107).

Almost surely, 2^40320220422 is an apocalyptic number.

40320220422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40320220422 is a wasteful number, since it uses less digits than its factorization.

40320220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720036742.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 40320220422 its reverse (22402202304), we get a palindrome (62722422726).

The spelling of 40320220422 in words is "forty billion, three hundred twenty million, two hundred twenty thousand, four hundred twenty-two".