40662013 has 12 divisors (see below), whose sum is σ = 47424000. Its totient is φ = 34762392.

The previous prime is 40661993. The next prime is 40662019. The reversal of 40662013 is 31026604.

It is not a de Polignac number, because 40662013 - 2²¹ = 38564861 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 (40662019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23620 + ... + 25282.

It is an arithmetic number, because the mean of its divisors is an integer number (3952000).

Almost surely, 2^40662013 is an apocalyptic number.

It is an amenable number.

40662013 is a deficient number, since it is larger than the sum of its proper divisors (6761987).

40662013 is a wasteful number, since it uses less digits than its factorization.

40662013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40662013 is about 6376.6772695503. The cubic root of 40662013 is about 343.8715859481.

Adding to 40662013 its reverse (31026604), we get a palindrome (71688617).

The spelling of 40662013 in words is "forty million, six hundred sixty-two thousand, thirteen".