4040871 has 4 divisors (see below), whose sum is σ = 5387832. Its totient is φ = 2693912.

The previous prime is 4040833. The next prime is 4040873. The reversal of 4040871 is 1780404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4040871 - 2⁹ = 4040359 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040873) 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, 673476 + ... + 673481.

It is an arithmetic number, because the mean of its divisors is an integer number (1346958).

Almost surely, 2^4040871 is an apocalyptic number.

4040871 is a deficient number, since it is larger than the sum of its proper divisors (1346961).

4040871 is a wasteful number, since it uses less digits than its factorization.

4040871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346960.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 4040871 is about 2010.1917818954. The cubic root of 4040871 is about 159.2789297212.

The spelling of 4040871 in words is "four million, forty thousand, eight hundred seventy-one".