3780218 has 16 divisors (see below), whose sum is σ = 6138720. Its totient is φ = 1735536.

The previous prime is 3780199. The next prime is 3780247. The reversal of 3780218 is 8120873.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8813 + ... + 9231.

It is an arithmetic number, because the mean of its divisors is an integer number (383670).

Almost surely, 2^3780218 is an apocalyptic number.

3780218 is a deficient number, since it is larger than the sum of its proper divisors (2358502).

3780218 is a wasteful number, since it uses less digits than its factorization.

3780218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 3780218 is about 1944.2782722645. The cubic root of 3780218 is about 155.7778176110. Note that the first 3 decimals are identical.

The spelling of 3780218 in words is "three million, seven hundred eighty thousand, two hundred eighteen".