8040881 has 4 divisors (see below), whose sum is σ = 8513892. Its totient is φ = 7567872.

The previous prime is 8040863. The next prime is 8040889. The reversal of 8040881 is 1880408.

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 7376656 + 664225 = 2716^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 8040881 - 2⁶ = 8040817 is a prime.

It is a super-2 number, since 2×8040881² = 129311534512322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8040889) 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, 236480 + ... + 236513.

It is an arithmetic number, because the mean of its divisors is an integer number (2128473).

Almost surely, 2^8040881 is an apocalyptic number.

It is an amenable number.

8040881 is a deficient number, since it is larger than the sum of its proper divisors (473011).

8040881 is a wasteful number, since it uses less digits than its factorization.

8040881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473010.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 8040881 is about 2835.6447238679. The cubic root of 8040881 is about 200.3400963446.

The spelling of 8040881 in words is "eight million, forty thousand, eight hundred eighty-one".