40336013 has 8 divisors (see below), whose sum is σ = 41813400. Its totient is φ = 38864448.

The previous prime is 40336001. The next prime is 40336027. The reversal of 40336013 is 31063304.

It can be written as a sum of positive squares in 4 ways, for example, as 2427364 + 37908649 = 1558^2 + 6157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40336013 - 2⁶ = 40335949 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 (40330013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16643 + ... + 18911.

It is an arithmetic number, because the mean of its divisors is an integer number (5226675).

Almost surely, 2^40336013 is an apocalyptic number.

It is an amenable number.

40336013 is a deficient number, since it is larger than the sum of its proper divisors (1477387).

40336013 is a wasteful number, since it uses less digits than its factorization.

40336013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 40336013 is about 6351.0639266189. The cubic root of 40336013 is about 342.9501439095.

Adding to 40336013 its reverse (31063304), we get a palindrome (71399317).

The spelling of 40336013 in words is "forty million, three hundred thirty-six thousand, thirteen".