805562240 has 64 divisors (see below), whose sum is σ = 2200923360. Its totient is φ = 276191232.

The previous prime is 805562213. The next prime is 805562243. The reversal of 805562240 is 42265508.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 805562197 and 805562206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805562243) by changing a digit.

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, 85427 + ... + 94386.

Almost surely, 2^805562240 is an apocalyptic number.

805562240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

805562240 is an abundant number, since it is smaller than the sum of its proper divisors (1395361120).

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

805562240 is a wasteful number, since it uses less digits than its factorization.

805562240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179839 (or 179827 counting only the distinct ones).

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

The square root of 805562240 is about 28382.4283668611. The cubic root of 805562240 is about 930.4642689049.

The spelling of 805562240 in words is "eight hundred five million, five hundred sixty-two thousand, two hundred forty".