7228566 has 12 divisors (see below), whose sum is σ = 15661932. Its totient is φ = 2409516.

The previous prime is 7228547. The next prime is 7228567. The reversal of 7228566 is 6658227.

7228566 is a `hidden beast` number, since 72 + 28 + 566 = 666.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7228566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200776 + ... + 200811.

It is an arithmetic number, because the mean of its divisors is an integer number (1305161).

Almost surely, 2^7228566 is an apocalyptic number.

7228566 is an abundant number, since it is smaller than the sum of its proper divisors (8433366).

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

7228566 is a wasteful number, since it uses less digits than its factorization.

7228566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401595 (or 401592 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 7228566 is about 2688.5992635571. The cubic root of 7228566 is about 193.3529118764.

The spelling of 7228566 in words is "seven million, two hundred twenty-eight thousand, five hundred sixty-six".