40290713 has 4 divisors (see below), whose sum is σ = 40317540. Its totient is φ = 40263888.

The previous prime is 40290707. The next prime is 40290721. The reversal of 40290713 is 31709204.

40290713 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4804864 + 35485849 = 2192^2 + 5957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40290713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40299713) 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, 11018 + ... + 14211.

It is an arithmetic number, because the mean of its divisors is an integer number (10079385).

Almost surely, 2^40290713 is an apocalyptic number.

It is an amenable number.

40290713 is a deficient number, since it is larger than the sum of its proper divisors (26827).

40290713 is a wasteful number, since it uses less digits than its factorization.

40290713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26826.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 40290713 is about 6347.4965931460. The cubic root of 40290713 is about 342.8217106159.

Adding to 40290713 its reverse (31709204), we get a palindrome (71999917).

The spelling of 40290713 in words is "forty million, two hundred ninety thousand, seven hundred thirteen".