3818238 has 16 divisors (see below), whose sum is σ = 7744896. Its totient is φ = 1254680.

The previous prime is 3818237. The next prime is 3818261. The reversal of 3818238 is 8328183.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3818199 and 3818208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3818231) 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 7 ways as a sum of consecutive naturals, for example, 4056 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (484056).

Almost surely, 2^3818238 is an apocalyptic number.

3818238 is an abundant number, since it is smaller than the sum of its proper divisors (3926658).

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

3818238 is a wasteful number, since it uses less digits than its factorization.

3818238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9039.

The product of its digits is 9216, while the sum is 33.

The square root of 3818238 is about 1954.0312177650. The cubic root of 3818238 is about 156.2983278774.

The spelling of 3818238 in words is "three million, eight hundred eighteen thousand, two hundred thirty-eight".