40031413 has 6 divisors (see below), whose sum is σ = 42525026. Its totient is φ = 37676352.

The previous prime is 40031401. The next prime is 40031419. The reversal of 40031413 is 31413004.

40031413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 12552849 + 27478564 = 3543^2 + 5242^2 .

It is not a de Polignac number, because 40031413 - 2⁹ = 40030901 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 (40031419) 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 5 ways as a sum of consecutive naturals, for example, 68970 + ... + 69547.

Almost surely, 2^40031413 is an apocalyptic number.

It is an amenable number.

40031413 is a deficient number, since it is larger than the sum of its proper divisors (2493613).

40031413 is a wasteful number, since it uses less digits than its factorization.

40031413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138551 (or 138534 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40031413 is about 6327.0382486595. The cubic root of 40031413 is about 342.0846917006.

Adding to 40031413 its reverse (31413004), we get a palindrome (71444417).

It can be divided in two parts, 400 and 31413, that added together give a palindrome (31813).

The spelling of 40031413 in words is "forty million, thirty-one thousand, four hundred thirteen".