4218930 has 24 divisors (see below), whose sum is σ = 10969452. Its totient is φ = 1125024.

The previous prime is 4218917. The next prime is 4218947. The reversal of 4218930 is 398124.

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 567009 = 1911^2 + 753^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4218894 and 4218903.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23349 + ... + 23528.

Almost surely, 2^4218930 is an apocalyptic number.

4218930 is an abundant number, since it is smaller than the sum of its proper divisors (6750522).

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

4218930 is a wasteful number, since it uses less digits than its factorization.

4218930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46890 (or 46887 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4218930 is about 2054.0034079816. The cubic root of 4218930 is about 161.5848997834.

The spelling of 4218930 in words is "four million, two hundred eighteen thousand, nine hundred thirty".