814805228 has 12 divisors (see below), whose sum is σ = 1475078640. Its totient is φ = 393354192.

The previous prime is 814805221. The next prime is 814805263. The reversal of 814805228 is 822508418.

It is a super-2 number, since 2×814805228² = 1327815119152263968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 814805191 and 814805200.

It is not an unprimeable number, because it can be changed into a prime (814805221) 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 3 ways as a sum of consecutive naturals, for example, 3511976 + ... + 3512207.

It is an arithmetic number, because the mean of its divisors is an integer number (122923220).

Almost surely, 2^814805228 is an apocalyptic number.

It is an amenable number.

814805228 is a deficient number, since it is larger than the sum of its proper divisors (660273412).

814805228 is a wasteful number, since it uses less digits than its factorization.

814805228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7024216 (or 7024214 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 38.

The square root of 814805228 is about 28544.7933606113. The cubic root of 814805228 is about 934.0094471179.

The spelling of 814805228 in words is "eight hundred fourteen million, eight hundred five thousand, two hundred twenty-eight".