4228257 has 16 divisors (see below), whose sum is σ = 6512832. Its totient is φ = 2411520.

The previous prime is 4228247. The next prime is 4228267. The reversal of 4228257 is 7528224.

It is an interprime number because it is at equal distance from previous prime (4228247) and next prime (4228267).

It is not a de Polignac number, because 4228257 - 2¹² = 4224161 is a prime.

It is an Ulam number.

4228257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4228247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3208 + ... + 4329.

It is an arithmetic number, because the mean of its divisors is an integer number (407052).

Almost surely, 2^4228257 is an apocalyptic number.

It is an amenable number.

4228257 is a deficient number, since it is larger than the sum of its proper divisors (2284575).

4228257 is a wasteful number, since it uses less digits than its factorization.

4228257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568.

The product of its digits is 8960, while the sum is 30.

The square root of 4228257 is about 2056.2725986600. The cubic root of 4228257 is about 161.7038867551.

The spelling of 4228257 in words is "four million, two hundred twenty-eight thousand, two hundred fifty-seven".