805268040 has 32 divisors (see below), whose sum is σ = 2415804480. Its totient is φ = 214738112.

The previous prime is 805268029. The next prime is 805268041. The reversal of 805268040 is 40862508.

It is a junction number, because it is equal to n+sod(n) for n = 805267992 and 805268010.

It is not an unprimeable number, because it can be changed into a prime (805268041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355164 + ... + 3355403.

It is an arithmetic number, because the mean of its divisors is an integer number (75493890).

Almost surely, 2^805268040 is an apocalyptic number.

It is an amenable number.

805268040 is an abundant number, since it is smaller than the sum of its proper divisors (1610536440).

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

805268040 is a wasteful number, since it uses less digits than its factorization.

805268040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710581 (or 6710577 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 805268040 is about 28377.2451094182. The cubic root of 805268040 is about 930.3509832577.

The spelling of 805268040 in words is "eight hundred five million, two hundred sixty-eight thousand, forty".