4248720 has 160 divisors (see below), whose sum is σ = 16784640. Its totient is φ = 967680.

The previous prime is 4248719. The next prime is 4248731. The reversal of 4248720 is 278424.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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, 14980 + ... + 15260.

It is an arithmetic number, because the mean of its divisors is an integer number (104904).

Almost surely, 2^4248720 is an apocalyptic number.

4248720 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 4248720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8392320).

4248720 is an abundant number, since it is smaller than the sum of its proper divisors (12535920).

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

4248720 is a wasteful number, since it uses less digits than its factorization.

4248720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 4248720 is about 2061.2423438305. The cubic root of 4248720 is about 161.9643268503.

The spelling of 4248720 in words is "four million, two hundred forty-eight thousand, seven hundred twenty".