40320041421 has 32 divisors (see below), whose sum is σ = 59552985600. Its totient is φ = 24059407680.

The previous prime is 40320041401. The next prime is 40320041423. The reversal of 40320041421 is 12414002304.

It is not a de Polignac number, because 40320041421 - 2⁵ = 40320041389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320041423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6229575 + ... + 6236043.

It is an arithmetic number, because the mean of its divisors is an integer number (1861030800).

Almost surely, 2^40320041421 is an apocalyptic number.

It is an amenable number.

40320041421 is a deficient number, since it is larger than the sum of its proper divisors (19232944179).

40320041421 is a wasteful number, since it uses less digits than its factorization.

40320041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9369.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40320041421 its reverse (12414002304), we get a palindrome (52734043725).

The spelling of 40320041421 in words is "forty billion, three hundred twenty million, forty-one thousand, four hundred twenty-one".