1223286 has 32 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 375936.

The previous prime is 1223281. The next prime is 1223309. The reversal of 1223286 is 6823221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6745 + ... + 6923.

It is an arithmetic number, because the mean of its divisors is an integer number (82620).

2^1223286 is an apocalyptic number.

1223286 is an abundant number, since it is smaller than the sum of its proper divisors (1420554).

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

1223286 is a wasteful number, since it uses less digits than its factorization.

1223286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268.

The product of its digits is 1152, while the sum is 24.

The square root of 1223286 is about 1106.0226037473. The cubic root of 1223286 is about 106.9488211298.

The spelling of 1223286 in words is "one million, two hundred twenty-three thousand, two hundred eighty-six".