7420228 has 12 divisors (see below), whose sum is σ = 13749372. Its totient is φ = 3491840.

The previous prime is 7420213. The next prime is 7420243. The reversal of 7420228 is 8220247.

It is an interprime number because it is at equal distance from previous prime (7420213) and next prime (7420243).

It can be written as a sum of positive squares in 2 ways, for example, as 3968064 + 3452164 = 1992^2 + 1858^2 .

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, 54493 + ... + 54628.

It is an arithmetic number, because the mean of its divisors is an integer number (1145781).

Almost surely, 2^7420228 is an apocalyptic number.

It is an amenable number.

7420228 is a deficient number, since it is larger than the sum of its proper divisors (6329144).

7420228 is a wasteful number, since it uses less digits than its factorization.

7420228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109142 (or 109140 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 7420228 is about 2724.0095447704. The cubic root of 7420228 is about 195.0469139808.

It can be divided in two parts, 74 and 20228, that added together give a palindrome (20302).

The spelling of 7420228 in words is "seven million, four hundred twenty thousand, two hundred twenty-eight".