1816338 has 8 divisors (see below), whose sum is σ = 3632688. Its totient is φ = 605444.

The previous prime is 1816337. The next prime is 1816387. The reversal of 1816338 is 8336181.

It is a sphenic number, since it is the product of 3 distinct primes.

1816338 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1816337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151356 + ... + 151367.

It is an arithmetic number, because the mean of its divisors is an integer number (454086).

2^1816338 is an apocalyptic number.

1816338 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.

1816338 is a wasteful number, since it uses less digits than its factorization.

1816338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302728.

The product of its digits is 3456, while the sum is 30.

The square root of 1816338 is about 1347.7158454214. The cubic root of 1816338 is about 122.0109727656.

The spelling of 1816338 in words is "one million, eight hundred sixteen thousand, three hundred thirty-eight".