806140 has 24 divisors (see below), whose sum is σ = 1793232. Its totient is φ = 303360.

The previous prime is 806137. The next prime is 806153. The reversal of 806140 is 41608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846 + ... + 1525.

It is an arithmetic number, because the mean of its divisors is an integer number (74718).

2⁸⁰⁶¹⁴⁰ is an apocalyptic number.

It is an amenable number.

806140 is an abundant number, since it is smaller than the sum of its proper divisors (987092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806140 is a wasteful number, since it uses less digits than its factorization.

806140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2395 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 806140 is about 897.8529946489. The cubic root of 806140 is about 93.0686662880.

Adding to 806140 its reverse (41608), we get a palindrome (847748).

It can be divided in two parts, 806 and 140, that added together give a triangular number (946 = T₄₃).

The spelling of 806140 in words is "eight hundred six thousand, one hundred forty".