40320431413 has 4 divisors (see below), whose sum is σ = 40334829228. Its totient is φ = 40306033600.

The previous prime is 40320431303. The next prime is 40320431429. The reversal of 40320431413 is 31413402304.

40320431413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25313446404 + 15006985009 = 159102^2 + 122503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40320431413 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 (40320431813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7194706 + ... + 7200307.

It is an arithmetic number, because the mean of its divisors is an integer number (10083707307).

Almost surely, 2^40320431413 is an apocalyptic number.

It is an amenable number.

40320431413 is a deficient number, since it is larger than the sum of its proper divisors (14397815).

40320431413 is a wasteful number, since it uses less digits than its factorization.

40320431413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14397814.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40320431413 its reverse (31413402304), we get a palindrome (71733833717).

The spelling of 40320431413 in words is "forty billion, three hundred twenty million, four hundred thirty-one thousand, four hundred thirteen".