808221830 has 16 divisors (see below), whose sum is σ = 1566707184. Its totient is φ = 298420320.

The previous prime is 808221797. The next prime is 808221833. The reversal of 808221830 is 38122808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808221833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3108416 + ... + 3108675.

It is an arithmetic number, because the mean of its divisors is an integer number (97919199).

Almost surely, 2^808221830 is an apocalyptic number.

808221830 is a deficient number, since it is larger than the sum of its proper divisors (758485354).

808221830 is a wasteful number, since it uses less digits than its factorization.

808221830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217111.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 808221830 is about 28429.2425154101. The cubic root of 808221830 is about 931.4871300998.

The spelling of 808221830 in words is "eight hundred eight million, two hundred twenty-one thousand, eight hundred thirty".