844147230 has 64 divisors (see below), whose sum is σ = 2100098880. Its totient is φ = 216981504.

The previous prime is 844147211. The next prime is 844147231. The reversal of 844147230 is 32741448.

It is a junction number, because it is equal to n+sod(n) for n = 844147191 and 844147200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844147231) 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 31 ways as a sum of consecutive naturals, for example, 117502 + ... + 124478.

It is an arithmetic number, because the mean of its divisors is an integer number (32814045).

Almost surely, 2^844147230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844147230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050049440).

844147230 is an abundant number, since it is smaller than the sum of its proper divisors (1255951650).

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

844147230 is a wasteful number, since it uses less digits than its factorization.

844147230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 844147230 is about 29054.2119149703. The cubic root of 844147230 is about 945.0890540638.

Adding to 844147230 its reverse (32741448), we get a palindrome (876888678).

The spelling of 844147230 in words is "eight hundred forty-four million, one hundred forty-seven thousand, two hundred thirty".