82353220 has 24 divisors (see below), whose sum is σ = 182044800. Its totient is φ = 31207392.

The previous prime is 82353199. The next prime is 82353223. The reversal of 82353220 is 2235328.

It is not an unprimeable number, because it can be changed into a prime (82353223) 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 7 ways as a sum of consecutive naturals, for example, 107980 + ... + 108739.

It is an arithmetic number, because the mean of its divisors is an integer number (7585200).

Almost surely, 2^82353220 is an apocalyptic number.

It is an amenable number.

82353220 is an abundant number, since it is smaller than the sum of its proper divisors (99691580).

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

82353220 is a wasteful number, since it uses less digits than its factorization.

82353220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216747 (or 216745 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 82353220 is about 9074.8674921455. The cubic root of 82353220 is about 435.0710589866.

Adding to 82353220 its reverse (2235328), we get a palindrome (84588548).

The spelling of 82353220 in words is "eighty-two million, three hundred fifty-three thousand, two hundred twenty".