4248321 has 32 divisors (see below), whose sum is σ = 7216128. Its totient is φ = 2159040.

The previous prime is 4248319. The next prime is 4248323. The reversal of 4248321 is 1238424.

It is an interprime number because it is at equal distance from previous prime (4248319) and next prime (4248323).

It is not a de Polignac number, because 4248321 - 2¹ = 4248319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4248291 and 4248300.

It is not an unprimeable number, because it can be changed into a prime (4248323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12070 + ... + 12416.

It is an arithmetic number, because the mean of its divisors is an integer number (225504).

Almost surely, 2^4248321 is an apocalyptic number.

It is an amenable number.

4248321 is a deficient number, since it is larger than the sum of its proper divisors (2967807).

4248321 is a wasteful number, since it uses less digits than its factorization.

4248321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its digits is 1536, while the sum is 24.

The square root of 4248321 is about 2061.1455552677. The cubic root of 4248321 is about 161.9592566339.

The spelling of 4248321 in words is "four million, two hundred forty-eight thousand, three hundred twenty-one".