4218956 has 24 divisors (see below), whose sum is σ = 8537760. Its totient is φ = 1786752.

The previous prime is 4218947. The next prime is 4218961. The reversal of 4218956 is 6598124.

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, 1646 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (355740).

Almost surely, 2^4218956 is an apocalyptic number.

It is an amenable number.

4218956 is an abundant number, since it is smaller than the sum of its proper divisors (4318804).

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

4218956 is a wasteful number, since it uses less digits than its factorization.

4218956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1791 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 4218956 is about 2054.0097370753. The cubic root of 4218956 is about 161.5852317158.

The spelling of 4218956 in words is "four million, two hundred eighteen thousand, nine hundred fifty-six".