7844228 has 24 divisors (see below), whose sum is σ = 15748992. Its totient is φ = 3348864.

The previous prime is 7844197. The next prime is 7844233. The reversal of 7844228 is 8224487.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11801 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (656208).

Almost surely, 2^7844228 is an apocalyptic number.

It is an amenable number.

7844228 is an abundant number, since it is smaller than the sum of its proper divisors (7904764).

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

7844228 is a wasteful number, since it uses less digits than its factorization.

7844228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1089 counting only the distinct ones).

The product of its digits is 28672, while the sum is 35.

The square root of 7844228 is about 2800.7548982373. The cubic root of 7844228 is about 198.6933823408.

The spelling of 7844228 in words is "seven million, eight hundred forty-four thousand, two hundred twenty-eight".