660226 has 12 divisors (see below), whose sum is σ = 1152198. Its totient is φ = 282912.

The previous prime is 660217. The next prime is 660227. The reversal of 660226 is 622066.

It can be written as a sum of positive squares in only one way, i.e., 561001 + 99225 = 749^2 + 315^2 .

It is a junction number, because it is equal to n+sod(n) for n = 660197 and 660206.

It is not an unprimeable number, because it can be changed into a prime (660227) 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, 3271 + ... + 3466.

2⁶⁶⁰²²⁶ is an apocalyptic number.

660226 is a deficient number, since it is larger than the sum of its proper divisors (491972).

660226 is a wasteful number, since it uses less digits than its factorization.

660226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753 (or 6746 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 660226 is about 812.5429219432. The cubic root of 660226 is about 87.0758135999.

The spelling of 660226 in words is "six hundred sixty thousand, two hundred twenty-six".