1822866 has 16 divisors (see below), whose sum is σ = 3672000. Its totient is φ = 603248.

The previous prime is 1822837. The next prime is 1822867. The reversal of 1822866 is 6682281.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126 + ... + 1913.

It is an arithmetic number, because the mean of its divisors is an integer number (229500).

2^1822866 is an apocalyptic number.

1822866 is an abundant number, since it is smaller than the sum of its proper divisors (1849134).

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

1822866 is a wasteful number, since it uses less digits than its factorization.

1822866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its digits is 9216, while the sum is 33.

The square root of 1822866 is about 1350.1355487506. The cubic root of 1822866 is about 122.1569689636.

The spelling of 1822866 in words is "one million, eight hundred twenty-two thousand, eight hundred sixty-six".