40006835 has 24 divisors (see below), whose sum is σ = 53434080. Its totient is φ = 28730240.

The previous prime is 40006829. The next prime is 40006843. The reversal of 40006835 is 53860004.

40006835 = 1338² + 1339² + ... + 1359².

40006835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40006835 - 2⁴ = 40006819 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 53474 + ... + 54216.

It is an arithmetic number, because the mean of its divisors is an integer number (2226420).

Almost surely, 2^40006835 is an apocalyptic number.

40006835 is a deficient number, since it is larger than the sum of its proper divisors (13427245).

40006835 is a wasteful number, since it uses less digits than its factorization.

40006835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40006835 is about 6325.0956514507. The cubic root of 40006835 is about 342.0146677019.

Adding to 40006835 its reverse (53860004), we get a palindrome (93866839).

The spelling of 40006835 in words is "forty million, six thousand, eight hundred thirty-five".