1822012 has 24 divisors (see below), whose sum is σ = 3351600. Its totient is φ = 865536.

The previous prime is 1822003. The next prime is 1822013. The reversal of 1822012 is 2102281.

It is a super-3 number, since 3×1822012³ = 18145751272233317184, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13039 + ... + 13177.

It is an arithmetic number, because the mean of its divisors is an integer number (139650).

2^1822012 is an apocalyptic number.

It is an amenable number.

1822012 is a deficient number, since it is larger than the sum of its proper divisors (1529588).

1822012 is a wasteful number, since it uses less digits than its factorization.

1822012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1822012 is about 1349.8192471587. The cubic root of 1822012 is about 122.1378894213.

Adding to 1822012 its reverse (2102281), we get a palindrome (3924293).

The spelling of 1822012 in words is "one million, eight hundred twenty-two thousand, twelve".