40208071 has 4 divisors (see below), whose sum is σ = 41956272. Its totient is φ = 38459872.

The previous prime is 40208059. The next prime is 40208083. The reversal of 40208071 is 17080204.

40208071 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 is an interprime number because it is at equal distance from previous prime (40208059) and next prime (40208083).

It is a cyclic number.

It is not a de Polignac number, because 40208071 - 2⁷ = 40207943 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 (40208041) 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, 874066 + ... + 874111.

It is an arithmetic number, because the mean of its divisors is an integer number (10489068).

Almost surely, 2^40208071 is an apocalyptic number.

40208071 is a deficient number, since it is larger than the sum of its proper divisors (1748201).

40208071 is a wasteful number, since it uses less digits than its factorization.

40208071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748200.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 40208071 is about 6340.9834410760. The cubic root of 40208071 is about 342.5871580980.

Adding to 40208071 its reverse (17080204), we get a palindrome (57288275).

The spelling of 40208071 in words is "forty million, two hundred eight thousand, seventy-one".