7518228 has 12 divisors (see below), whose sum is σ = 17542560. Its totient is φ = 2506072.

The previous prime is 7518191. The next prime is 7518241. The reversal of 7518228 is 8228157.

It is a tau number, because it is divible by the number of its divisors (12).

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, 313248 + ... + 313271.

It is an arithmetic number, because the mean of its divisors is an integer number (1461880).

Almost surely, 2^7518228 is an apocalyptic number.

It is an amenable number.

7518228 is an abundant number, since it is smaller than the sum of its proper divisors (10024332).

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

7518228 is a wasteful number, since it uses less digits than its factorization.

7518228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626526 (or 626524 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 7518228 is about 2741.9387301689. The cubic root of 7518228 is about 195.9018320007.

The spelling of 7518228 in words is "seven million, five hundred eighteen thousand, two hundred twenty-eight".