1816234 has 24 divisors (see below), whose sum is σ = 3250368. Its totient is φ = 758520.

The previous prime is 1816211. The next prime is 1816237. The reversal of 1816234 is 4326181.

It is a junction number, because it is equal to n+sod(n) for n = 1816199 and 1816208.

It is not an unprimeable number, because it can be changed into a prime (1816237) 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, 3999 + ... + 4429.

It is an arithmetic number, because the mean of its divisors is an integer number (135432).

2^1816234 is an apocalyptic number.

1816234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1816234 is a deficient number, since it is larger than the sum of its proper divisors (1434134).

1816234 is a wasteful number, since it uses less digits than its factorization.

1816234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 483 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 1816234 is about 1347.6772610681. The cubic root of 1816234 is about 122.0086440171.

The spelling of 1816234 in words is "one million, eight hundred sixteen thousand, two hundred thirty-four".