1812366 has 24 divisors (see below), whose sum is σ = 3967704. Its totient is φ = 597840.

The previous prime is 1812361. The next prime is 1812379. The reversal of 1812366 is 6632181.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1812361) 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 11 ways as a sum of consecutive naturals, for example, 1456 + ... + 2396.

It is an arithmetic number, because the mean of its divisors is an integer number (165321).

2^1812366 is an apocalyptic number.

1812366 is an abundant number, since it is smaller than the sum of its proper divisors (2155338).

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

1812366 is a wasteful number, since it uses less digits than its factorization.

1812366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1053 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1812366 is about 1346.2414345131. The cubic root of 1812366 is about 121.9219692730.

The spelling of 1812366 in words is "one million, eight hundred twelve thousand, three hundred sixty-six".