806450220 has 72 divisors (see below), whose sum is σ = 2449137600. Its totient is φ = 214798080.

The previous prime is 806450191. The next prime is 806450221. The reversal of 806450220 is 22054608.

806450220 is a `hidden beast` number, since 80 + 64 + 502 + 20 = 666.

It is not an unprimeable number, because it can be changed into a prime (806450221) 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 23 ways as a sum of consecutive naturals, for example, 186685 + ... + 190955.

It is an arithmetic number, because the mean of its divisors is an integer number (34015800).

Almost surely, 2^806450220 is an apocalyptic number.

It is an amenable number.

806450220 is an abundant number, since it is smaller than the sum of its proper divisors (1642687380).

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

806450220 is a wasteful number, since it uses less digits than its factorization.

806450220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335 (or 5330 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 806450220 is about 28398.0671877506. The cubic root of 806450220 is about 930.8060303139.

The spelling of 806450220 in words is "eight hundred six million, four hundred fifty thousand, two hundred twenty".