4218948 has 18 divisors (see below), whose sum is σ = 10664654. Its totient is φ = 1406304.

The previous prime is 4218947. The next prime is 4218961. The reversal of 4218948 is 8498124.

It can be written as a sum of positive squares in only one way, i.e., 2585664 + 1633284 = 1608^2 + 1278^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 117193 = 4218948 / (4 + 2 + 1 + 8 + 9 + 4 + 8).

It is not an unprimeable number, because it can be changed into a prime (4218947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58561 + ... + 58632.

Almost surely, 2^4218948 is an apocalyptic number.

It is an amenable number.

4218948 is an abundant number, since it is smaller than the sum of its proper divisors (6445706).

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

4218948 is a wasteful number, since it uses less digits than its factorization.

4218948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117203 (or 117198 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 4218948 is about 2054.0077896639. The cubic root of 4218948 is about 161.5851295829.

The spelling of 4218948 in words is "four million, two hundred eighteen thousand, nine hundred forty-eight".