7387228 has 24 divisors (see below), whose sum is σ = 13693680. Its totient is φ = 3480960.

The previous prime is 7387223. The next prime is 7387243. The reversal of 7387228 is 8227837.

It is a super-2 number, since 2×7387228² = 109142275047968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7387223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4248 + ... + 5728.

It is an arithmetic number, because the mean of its divisors is an integer number (570570).

Almost surely, 2^7387228 is an apocalyptic number.

It is an amenable number.

7387228 is a deficient number, since it is larger than the sum of its proper divisors (6306452).

7387228 is a wasteful number, since it uses less digits than its factorization.

7387228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1555 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 7387228 is about 2717.9455476518. The cubic root of 7387228 is about 194.7573400591.

The spelling of 7387228 in words is "seven million, three hundred eighty-seven thousand, two hundred twenty-eight".