40320024431 has 16 divisors (see below), whose sum is σ = 45136776960. Its totient is φ = 35792542080.

The previous prime is 40320024421. The next prime is 40320024439. The reversal of 40320024431 is 13442002304.

It is a cyclic number.

It is not a de Polignac number, because 40320024431 - 2¹⁰ = 40320023407 is a prime.

It is a super-2 number, since 2×40320024431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40320024397 and 40320024406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320024439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201635 + ... + 348276.

It is an arithmetic number, because the mean of its divisors is an integer number (2821048560).

Almost surely, 2^40320024431 is an apocalyptic number.

40320024431 is a deficient number, since it is larger than the sum of its proper divisors (4816752529).

40320024431 is a wasteful number, since it uses less digits than its factorization.

40320024431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550174.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40320024431 its reverse (13442002304), we get a palindrome (53762026735).

The spelling of 40320024431 in words is "forty billion, three hundred twenty million, twenty-four thousand, four hundred thirty-one".