40671013 has 4 divisors (see below), whose sum is σ = 40914720. Its totient is φ = 40427308.

The previous prime is 40671011. The next prime is 40671019. The reversal of 40671013 is 31017604.

40671013 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 40671013 - 2¹ = 40671011 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 (40671011) 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, 121603 + ... + 121936.

It is an arithmetic number, because the mean of its divisors is an integer number (10228680).

Almost surely, 2^40671013 is an apocalyptic number.

It is an amenable number.

40671013 is a deficient number, since it is larger than the sum of its proper divisors (243707).

40671013 is a wasteful number, since it uses less digits than its factorization.

40671013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243706.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 40671013 is about 6377.3829271889. The cubic root of 40671013 is about 343.8969545558.

Adding to 40671013 its reverse (31017604), we get a palindrome (71688617).

The spelling of 40671013 in words is "forty million, six hundred seventy-one thousand, thirteen".