40344113 has 4 divisors (see below), whose sum is σ = 41645568. Its totient is φ = 39042660.

The previous prime is 40344103. The next prime is 40344131. The reversal of 40344113 is 31144304.

It is a happy number.

40344113 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40344113 - 2⁸ = 40343857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40344103) 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 3 ways as a sum of consecutive naturals, for example, 650681 + ... + 650742.

It is an arithmetic number, because the mean of its divisors is an integer number (10411392).

Almost surely, 2^40344113 is an apocalyptic number.

It is an amenable number.

40344113 is a deficient number, since it is larger than the sum of its proper divisors (1301455).

40344113 is a wasteful number, since it uses less digits than its factorization.

40344113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301454.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40344113 is about 6351.7015830406. The cubic root of 40344113 is about 342.9730986674.

Adding to 40344113 its reverse (31144304), we get a palindrome (71488417).

The spelling of 40344113 in words is "forty million, three hundred forty-four thousand, one hundred thirteen".