40063705 has 12 divisors (see below), whose sum is σ = 52845156. Its totient is φ = 29136800.

The previous prime is 40063697. The next prime is 40063717. The reversal of 40063705 is 50736004.

40063705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 23319241 + 16744464 = 4829^2 + 4092^2 .

It is not a de Polignac number, because 40063705 - 2³ = 40063697 is a prime.

It is a super-3 number, since 3×40063705³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40063705.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 32506 + ... + 33715.

It is an arithmetic number, because the mean of its divisors is an integer number (4403763).

Almost surely, 2^40063705 is an apocalyptic number.

It is an amenable number.

40063705 is a deficient number, since it is larger than the sum of its proper divisors (12781451).

40063705 is a wasteful number, since it uses less digits than its factorization.

40063705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66248 (or 66237 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 40063705 is about 6329.5896391472. The cubic root of 40063705 is about 342.1766497328.

Adding to 40063705 its reverse (50736004), we get a palindrome (90799709).

The spelling of 40063705 in words is "forty million, sixty-three thousand, seven hundred five".