7228888 has 16 divisors (see below), whose sum is σ = 14022000. Its totient is φ = 3489696.

The previous prime is 7228883. The next prime is 7228889. The reversal of 7228888 is 8888227.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15348 + ... + 15811.

It is an arithmetic number, because the mean of its divisors is an integer number (876375).

Almost surely, 2^7228888 is an apocalyptic number.

It is an amenable number.

7228888 is a deficient number, since it is larger than the sum of its proper divisors (6793112).

7228888 is a wasteful number, since it uses less digits than its factorization.

7228888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31194 (or 31190 counting only the distinct ones).

The product of its digits is 114688, while the sum is 43.

The square root of 7228888 is about 2688.6591453734. The cubic root of 7228888 is about 193.3557828337.

The spelling of 7228888 in words is "seven million, two hundred twenty-eight thousand, eight hundred eighty-eight".