805526240 has 96 divisors (see below), whose sum is σ = 2014419456. Its totient is φ = 303761920.

The previous prime is 805526213. The next prime is 805526251. The reversal of 805526240 is 42625508.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 805526197 and 805526206.

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 15 ways as a sum of consecutive naturals, for example, 259739 + ... + 262821.

It is an arithmetic number, because the mean of its divisors is an integer number (20983536).

Almost surely, 2^805526240 is an apocalyptic number.

805526240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805526240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1007209728).

805526240 is an abundant number, since it is smaller than the sum of its proper divisors (1208893216).

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

805526240 is a wasteful number, since it uses less digits than its factorization.

805526240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192 (or 3184 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 805526240 is about 28381.7941645697. The cubic root of 805526240 is about 930.4504081044.

The spelling of 805526240 in words is "eight hundred five million, five hundred twenty-six thousand, two hundred forty".