4224840 has 128 divisors (see below), whose sum is σ = 14256000. Its totient is φ = 995328.

The previous prime is 4224839. The next prime is 4224851. The reversal of 4224840 is 484224.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4224840.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38706 + ... + 38814.

It is an arithmetic number, because the mean of its divisors is an integer number (111375).

Almost surely, 2^4224840 is an apocalyptic number.

4224840 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 4224840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7128000).

4224840 is an abundant number, since it is smaller than the sum of its proper divisors (10031160).

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

4224840 is a wasteful number, since it uses less digits than its factorization.

4224840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4224840 is about 2055.4415584005. The cubic root of 4224840 is about 161.6603155238.

The spelling of 4224840 in words is "four million, two hundred twenty-four thousand, eight hundred forty".