40240442221 has 8 divisors (see below), whose sum is σ = 46410995840. Its totient is φ = 34175368368.

The previous prime is 40240442219. The next prime is 40240442227. The reversal of 40240442221 is 12224404204.

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

It is a cyclic number.

It is not a de Polignac number, because 40240442221 - 2¹ = 40240442219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240442227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26369121 + ... + 26370646.

It is an arithmetic number, because the mean of its divisors is an integer number (5801374480).

Almost surely, 2^40240442221 is an apocalyptic number.

It is an amenable number.

40240442221 is a deficient number, since it is larger than the sum of its proper divisors (6170553619).

40240442221 is a wasteful number, since it uses less digits than its factorization.

40240442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52739883.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 40240442221 its reverse (12224404204), we get a palindrome (52464846425).

The spelling of 40240442221 in words is "forty billion, two hundred forty million, four hundred forty-two thousand, two hundred twenty-one".