7442228 has 12 divisors (see below), whose sum is σ = 13158852. Its totient is φ = 3682560.

The previous prime is 7442213. The next prime is 7442231. The reversal of 7442228 is 8222447.

7442228 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4545424 + 2896804 = 2132^2 + 1702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7442228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9203 + ... + 9978.

It is an arithmetic number, because the mean of its divisors is an integer number (1096571).

Almost surely, 2^7442228 is an apocalyptic number.

It is an amenable number.

7442228 is a deficient number, since it is larger than the sum of its proper divisors (5716624).

7442228 is a wasteful number, since it uses less digits than its factorization.

7442228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19282 (or 19280 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 7442228 is about 2728.0447210411. The cubic root of 7442228 is about 195.2394866033.

The spelling of 7442228 in words is "seven million, four hundred forty-two thousand, two hundred twenty-eight".