7502228 has 6 divisors (see below), whose sum is σ = 13128906. Its totient is φ = 3751112.

The previous prime is 7502227. The next prime is 7502237. The reversal of 7502228 is 8222057.

It can be written as a sum of positive squares in only one way, i.e., 4072324 + 3429904 = 2018^2 + 1852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7502197 and 7502206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7502227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937775 + ... + 937782.

It is an arithmetic number, because the mean of its divisors is an integer number (2188151).

Almost surely, 2^7502228 is an apocalyptic number.

It is an amenable number.

7502228 is a deficient number, since it is larger than the sum of its proper divisors (5626678).

7502228 is a wasteful number, since it uses less digits than its factorization.

7502228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875561 (or 1875559 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 7502228 is about 2739.0195326065. The cubic root of 7502228 is about 195.7627630841.

The spelling of 7502228 in words is "seven million, five hundred two thousand, two hundred twenty-eight".