40344331431 has 8 divisors (see below), whose sum is σ = 53849610864. Its totient is φ = 26867636480.

The previous prime is 40344331409. The next prime is 40344331451. The reversal of 40344331431 is 13413344304.

40344331431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40344331431 - 2¹⁷ = 40344200359 is a prime.

It is a super-2 number, since 2×40344331431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344331451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7142826 + ... + 7148471.

It is an arithmetic number, because the mean of its divisors is an integer number (6731201358).

Almost surely, 2^40344331431 is an apocalyptic number.

40344331431 is a deficient number, since it is larger than the sum of its proper divisors (13505279433).

40344331431 is a wasteful number, since it uses less digits than its factorization.

40344331431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14292241.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 40344331431 its reverse (13413344304), we get a palindrome (53757675735).

The spelling of 40344331431 in words is "forty billion, three hundred forty-four million, three hundred thirty-one thousand, four hundred thirty-one".