40490013 has 8 divisors (see below), whose sum is σ = 54412288. Its totient is φ = 26780544.

The previous prime is 40490011. The next prime is 40490033. The reversal of 40490013 is 31009404.

40490013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40490013 - 2¹ = 40490011 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 (40490011) 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 7 ways as a sum of consecutive naturals, for example, 52756 + ... + 53517.

It is an arithmetic number, because the mean of its divisors is an integer number (6801536).

Almost surely, 2^40490013 is an apocalyptic number.

It is an amenable number.

40490013 is a deficient number, since it is larger than the sum of its proper divisors (13922275).

40490013 is a wasteful number, since it uses less digits than its factorization.

40490013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106403.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40490013 is about 6363.1763294757. The cubic root of 40490013 is about 343.3860426401.

Adding to 40490013 its reverse (31009404), we get a palindrome (71499417).

The spelling of 40490013 in words is "forty million, four hundred ninety thousand, thirteen".