3955218 has 16 divisors (see below), whose sum is σ = 8254656. Its totient is φ = 1261040.

The previous prime is 3955187. The next prime is 3955243. The reversal of 3955218 is 8125593.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 14193 + ... + 14468.

It is an arithmetic number, because the mean of its divisors is an integer number (515916).

Almost surely, 2^3955218 is an apocalyptic number.

3955218 is an abundant number, since it is smaller than the sum of its proper divisors (4299438).

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

3955218 is a wasteful number, since it uses less digits than its factorization.

3955218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28689.

The product of its digits is 10800, while the sum is 33.

The square root of 3955218 is about 1988.7729885535. The cubic root of 3955218 is about 158.1454890207.

The spelling of 3955218 in words is "three million, nine hundred fifty-five thousand, two hundred eighteen".