822561234 has 32 divisors (see below), whose sum is σ = 1799544384. Its totient is φ = 248585280.

The previous prime is 822561227. The next prime is 822561247. The reversal of 822561234 is 432165228.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 822561195 and 822561204.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7912 + ... + 41324.

It is an arithmetic number, because the mean of its divisors is an integer number (56235762).

Almost surely, 2^822561234 is an apocalyptic number.

822561234 is an abundant number, since it is smaller than the sum of its proper divisors (976983150).

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

822561234 is a wasteful number, since it uses less digits than its factorization.

822561234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33802.

The product of its digits is 23040, while the sum is 33.

The square root of 822561234 is about 28680.3283454008. The cubic root of 822561234 is about 936.9636575199.

The spelling of 822561234 in words is "eight hundred twenty-two million, five hundred sixty-one thousand, two hundred thirty-four".