3784218 has 16 divisors (see below), whose sum is σ = 7753536. Its totient is φ = 1230560.

The previous prime is 3784199. The next prime is 3784223. The reversal of 3784218 is 8124873.

It is an unprimeable number.

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, 7446 + ... + 7937.

It is an arithmetic number, because the mean of its divisors is an integer number (484596).

Almost surely, 2^3784218 is an apocalyptic number.

3784218 is an abundant number, since it is smaller than the sum of its proper divisors (3969318).

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

3784218 is a wasteful number, since it uses less digits than its factorization.

3784218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15429.

The product of its digits is 10752, while the sum is 33.

The square root of 3784218 is about 1945.3066596298. The cubic root of 3784218 is about 155.8327431576.

It can be divided in two parts, 37 and 84218, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 3784218 in words is "three million, seven hundred eighty-four thousand, two hundred eighteen".