3810218 has 4 divisors (see below), whose sum is σ = 5715330. Its totient is φ = 1905108.

The previous prime is 3810211. The next prime is 3810221. The reversal of 3810218 is 8120183.

3810218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3775249 + 34969 = 1943^2 + 187^2 .

It is a super-2 number, since 2×3810218² = 29035522415048, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3810193 and 3810202.

It is not an unprimeable number, because it can be changed into a prime (3810211) by changing a digit.

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 as a sum of consecutive naturals, namely, 952553 + ... + 952556.

Almost surely, 2^3810218 is an apocalyptic number.

3810218 is a deficient number, since it is larger than the sum of its proper divisors (1905112).

3810218 is a wasteful number, since it uses less digits than its factorization.

3810218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905111.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 3810218 is about 1951.9779711872. The cubic root of 3810218 is about 156.1888191406.

The spelling of 3810218 in words is "three million, eight hundred ten thousand, two hundred eighteen".