1862812 has 12 divisors (see below), whose sum is σ = 3725680. Its totient is φ = 798336.

The previous prime is 1862797. The next prime is 1862837. The reversal of 1862812 is 2182681.

1862812 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 66529 = 1862812 / (1 + 8 + 6 + 2 + 8 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 33237 + ... + 33292.

2^1862812 is an apocalyptic number.

It is an amenable number.

1862812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1862812 is a wasteful number, since it uses less digits than its factorization.

1862812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66540 (or 66538 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 1862812 is about 1364.8487095645. The cubic root of 1862812 is about 123.0428387588.

The spelling of 1862812 in words is "one million, eight hundred sixty-two thousand, eight hundred twelve".