8620224 has 112 divisors (see below), whose sum is σ = 25603200. Its totient is φ = 2543616.

The previous prime is 8620219. The next prime is 8620231. The reversal of 8620224 is 4220268.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8620194 and 8620203.

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 15 ways as a sum of consecutive naturals, for example, 61947 + ... + 62085.

It is an arithmetic number, because the mean of its divisors is an integer number (228600).

Almost surely, 2^8620224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8620224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12801600).

8620224 is an abundant number, since it is smaller than the sum of its proper divisors (16982976).

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

8620224 is a wasteful number, since it uses less digits than its factorization.

8620224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 180 counting only the distinct ones).

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

The square root of 8620224 is about 2936.0217982842. The cubic root of 8620224 is about 205.0404362035.

The spelling of 8620224 in words is "eight million, six hundred twenty thousand, two hundred twenty-four".