4247320 has 96 divisors (see below), whose sum is σ = 12188880. Its totient is φ = 1317120.

The previous prime is 4247281. The next prime is 4247333. The reversal of 4247320 is 237424.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a d-powerful number, because it can be written as 4 + 2⁹ + 4¹¹ + 7² + 3⁹ + 2¹⁵ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 4247291 and 4247300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21462 + ... + 21658.

Almost surely, 2^4247320 is an apocalyptic number.

4247320 is a gapful number since it is divisible by the number (40) 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 4247320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6094440).

4247320 is an abundant number, since it is smaller than the sum of its proper divisors (7941560).

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

4247320 is a wasteful number, since it uses less digits than its factorization.

4247320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 4247320 is about 2060.9027148315. The cubic root of 4247320 is about 161.9465352199.

It can be divided in two parts, 424 and 7320, that added together give a square (7744 = 88²).

The spelling of 4247320 in words is "four million, two hundred forty-seven thousand, three hundred twenty".