7166224 has 40 divisors (see below), whose sum is σ = 15124032. Its totient is φ = 3269760.

The previous prime is 7166221. The next prime is 7166227. The reversal of 7166224 is 4226617.

It is an interprime number because it is at equal distance from previous prime (7166221) and next prime (7166227).

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7166192 and 7166201.

It is not an unprimeable number, because it can be changed into a prime (7166221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27117 + ... + 27379.

Almost surely, 2^7166224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7166224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7562016).

7166224 is an abundant number, since it is smaller than the sum of its proper divisors (7957808).

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

7166224 is a wasteful number, since it uses less digits than its factorization.

7166224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 409 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 7166224 is about 2676.9803884227. The cubic root of 7166224 is about 192.7954556644.

The spelling of 7166224 in words is "seven million, one hundred sixty-six thousand, two hundred twenty-four".