6442227 has 32 divisors (see below), whose sum is σ = 10560000. Its totient is φ = 3849120.

The previous prime is 6442223. The next prime is 6442237. The reversal of 6442227 is 7222446.

It is a happy number.

It is not a de Polignac number, because 6442227 - 2² = 6442223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 6442227.

It is not an unprimeable number, because it can be changed into a prime (6442223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32274 + ... + 32472.

It is an arithmetic number, because the mean of its divisors is an integer number (330000).

Almost surely, 2^6442227 is an apocalyptic number.

6442227 is a deficient number, since it is larger than the sum of its proper divisors (4117773).

6442227 is a wasteful number, since it uses less digits than its factorization.

6442227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 322 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 6442227 is about 2538.1542506317. The cubic root of 6442227 is about 186.0709926711.

The spelling of 6442227 in words is "six million, four hundred forty-two thousand, two hundred twenty-seven".