1814868 has 36 divisors (see below), whose sum is σ = 5005728. Its totient is φ = 549840.

The previous prime is 1814851. The next prime is 1814909. The reversal of 1814868 is 8684181.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 1896 + ... + 2687.

It is an arithmetic number, because the mean of its divisors is an integer number (139048).

2^1814868 is an apocalyptic number.

1814868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1814868 is an abundant number, since it is smaller than the sum of its proper divisors (3190860).

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

1814868 is a wasteful number, since it uses less digits than its factorization.

1814868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604 (or 4599 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 1814868 is about 1347.1703678451. The cubic root of 1814868 is about 121.9780485454.

The spelling of 1814868 in words is "one million, eight hundred fourteen thousand, eight hundred sixty-eight".