40324404321 has 6 divisors (see below), whose sum is σ = 58246361810. Its totient is φ = 26882936208.

The previous prime is 40324404317. The next prime is 40324404353. The reversal of 40324404321 is 12340442304.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23303549025 + 17020855296 = 152655^2 + 130464^2 .

It is not a de Polignac number, because 40324404321 - 2² = 40324404317 is a prime.

It is a super-3 number, since 3×40324404321³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40324404361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2240244676 + ... + 2240244693.

Almost surely, 2^40324404321 is an apocalyptic number.

It is an amenable number.

40324404321 is a deficient number, since it is larger than the sum of its proper divisors (17921957489).

40324404321 is a wasteful number, since it uses less digits than its factorization.

40324404321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480489375 (or 4480489372 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40324404321 its reverse (12340442304), we get a palindrome (52664846625).

The spelling of 40324404321 in words is "forty billion, three hundred twenty-four million, four hundred four thousand, three hundred twenty-one".