40321321220442 has 32 divisors (see below), whose sum is σ = 80781800726592. Its totient is φ = 13417254474624.

The previous prime is 40321321220413. The next prime is 40321321220473. The reversal of 40321321220442 is 24402212312304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21864468 + ... + 23636784.

It is an arithmetic number, because the mean of its divisors is an integer number (2524431272706).

Almost surely, 2^{40321321220442} is an apocalyptic number.

40321321220442 is an abundant number, since it is smaller than the sum of its proper divisors (40460479506150).

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

40321321220442 is a wasteful number, since it uses less digits than its factorization.

40321321220442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778862.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 40321321220442 its reverse (24402212312304), we get a palindrome (64723533532746).

The spelling of 40321321220442 in words is "forty trillion, three hundred twenty-one billion, three hundred twenty-one million, two hundred twenty thousand, four hundred forty-two".