4247328 has 48 divisors (see below), whose sum is σ = 11261376. Its totient is φ = 1401600.

The previous prime is 4247281. The next prime is 4247333. The reversal of 4247328 is 8237424.

It is a tau number, because it is divible by the number of its divisors (48).

It is a d-powerful number, because it can be written as 4 + 2⁹ + 4¹¹ + 7² + 3⁹ + 2¹⁵ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 4247295 and 4247304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14350 + ... + 14642.

It is an arithmetic number, because the mean of its divisors is an integer number (234612).

Almost surely, 2^4247328 is an apocalyptic number.

4247328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4247328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5630688).

4247328 is an abundant number, since it is smaller than the sum of its proper divisors (7014048).

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

4247328 is a wasteful number, since it uses less digits than its factorization.

4247328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 449 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 4247328 is about 2060.9046557277. The cubic root of 4247328 is about 161.9466368974.

The spelling of 4247328 in words is "four million, two hundred forty-seven thousand, three hundred twenty-eight".