6660226 has 32 divisors (see below), whose sum is σ = 11197440. Its totient is φ = 2956800.

The previous prime is 6660221. The next prime is 6660233. The reversal of 6660226 is 6220666.

It is a super-2 number, since 2×6660226² = 88717220742152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6660194 and 6660203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74790 + ... + 74878.

It is an arithmetic number, because the mean of its divisors is an integer number (349920).

Almost surely, 2^6660226 is an apocalyptic number.

6660226 is a deficient number, since it is larger than the sum of its proper divisors (4537214).

6660226 is a wasteful number, since it uses less digits than its factorization.

6660226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6660226 is about 2580.7413663519. The cubic root of 6660226 is about 188.1465772538.

Multiplying 6660226 by its sum of digits (28), we get a triangular number (186486328 = T₁₉₃₁₂).

It can be divided in two parts, 6660 and 226, that added together give a palindrome (6886).

The spelling of 6660226 in words is "six million, six hundred sixty thousand, two hundred twenty-six".