7830228 has 72 divisors (see below), whose sum is σ = 21798336. Its totient is φ = 2142720.

The previous prime is 7830211. The next prime is 7830239. The reversal of 7830228 is 8220387.

It is a super-2 number, since 2×7830228² = 122624941063968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7830195 and 7830204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80676 + ... + 80772.

Almost surely, 2^7830228 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 7830228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10899168).

7830228 is an abundant number, since it is smaller than the sum of its proper divisors (13968108).

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

7830228 is a wasteful number, since it uses less digits than its factorization.

7830228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 7830228 is about 2798.2544559064. The cubic root of 7830228 is about 198.5751058246.

The spelling of 7830228 in words is "seven million, eight hundred thirty thousand, two hundred twenty-eight".