34821228 has 96 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 10047744.

The previous prime is 34821223. The next prime is 34821233. The reversal of 34821228 is 82212843.

It is an interprime number because it is at equal distance from previous prime (34821223) and next prime (34821233).

It is a super-3 number, since 3×34821228³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34821195 and 34821204.

It is not an unprimeable number, because it can be changed into a prime (34821221) 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 31 ways as a sum of consecutive naturals, for example, 194443 + ... + 194621.

It is an arithmetic number, because the mean of its divisors is an integer number (970200).

Almost surely, 2^34821228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34821228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46569600).

34821228 is an abundant number, since it is smaller than the sum of its proper divisors (58317972).

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

34821228 is a wasteful number, since it uses less digits than its factorization.

34821228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 34821228 is about 5900.9514487072. The cubic root of 34821228 is about 326.5487514629.

The spelling of 34821228 in words is "thirty-four million, eight hundred twenty-one thousand, two hundred twenty-eight".