40327431 has 8 divisors (see below), whose sum is σ = 53860080. Its totient is φ = 26839872.

The previous prime is 40327411. The next prime is 40327439. The reversal of 40327431 is 13472304.

40327431 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 not a de Polignac number, because 40327431 - 2⁹ = 40326919 is a prime.

It is a super-2 number, since 2×40327431² = 3252603382119522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40327439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9126 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (6732510).

Almost surely, 2^40327431 is an apocalyptic number.

40327431 is a deficient number, since it is larger than the sum of its proper divisors (13532649).

40327431 is a wasteful number, since it uses less digits than its factorization.

40327431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22545.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 40327431 is about 6350.3882558470. The cubic root of 40327431 is about 342.9258198487.

Adding to 40327431 its reverse (13472304), we get a palindrome (53799735).

The spelling of 40327431 in words is "forty million, three hundred twenty-seven thousand, four hundred thirty-one".