286226 has 4 divisors (see below), whose sum is σ = 429342. Its totient is φ = 143112.

The previous prime is 286199. The next prime is 286243. The reversal of 286226 is 622682.

It is a Cunningham number, because it is equal to 535²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622682 = 2 ⋅311341.

It can be written as a sum of positive squares in only one way, i.e., 286225 + 1 = 535^2 + 1^2 .

It is a junction number, because it is equal to n+sod(n) for n = 286195 and 286204.

It is an unprimeable number.

286226 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71555 + ... + 71558.

2²⁸⁶²²⁶ is an apocalyptic number.

286226 is a deficient number, since it is larger than the sum of its proper divisors (143116).

286226 is a wasteful number, since it uses less digits than its factorization.

286226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143115.

The product of its digits is 2304, while the sum is 26.

The square root of 286226 is about 535.0009345786. Note that the first 3 decimals coincide. The cubic root of 286226 is about 65.9026725851.

It can be divided in two parts, 286 and 226, that added together give a 9-th power (512 = 2⁹).

The spelling of 286226 in words is "two hundred eighty-six thousand, two hundred twenty-six".