4241857 has 4 divisors (see below), whose sum is σ = 4491396. Its totient is φ = 3992320.

The previous prime is 4241851. The next prime is 4241873. The reversal of 4241857 is 7581424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2792241 + 1449616 = 1671^2 + 1204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4241857 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4241851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124744 + ... + 124777.

It is an arithmetic number, because the mean of its divisors is an integer number (1122849).

Almost surely, 2^4241857 is an apocalyptic number.

It is an amenable number.

4241857 is a deficient number, since it is larger than the sum of its proper divisors (249539).

4241857 is a wasteful number, since it uses less digits than its factorization.

4241857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249538.

The product of its digits is 8960, while the sum is 31.

The square root of 4241857 is about 2059.5768982973. The cubic root of 4241857 is about 161.8770723188.

The spelling of 4241857 in words is "four million, two hundred forty-one thousand, eight hundred fifty-seven".