8920224 has 72 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 2905728.

The previous prime is 8920201. The next prime is 8920243. The reversal of 8920224 is 4220298.

It is a tau number, because it is divible by the number of its divisors (72).

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 11 ways as a sum of consecutive naturals, for example, 13207 + ... + 13865.

It is an arithmetic number, because the mean of its divisors is an integer number (360360).

Almost surely, 2^8920224 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 8920224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12972960).

8920224 is an abundant number, since it is smaller than the sum of its proper divisors (17025696).

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

8920224 is a wasteful number, since it uses less digits than its factorization.

8920224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8920224 is about 2986.6744047519. The cubic root of 8920224 is about 207.3919619514.

The spelling of 8920224 in words is "eight million, nine hundred twenty thousand, two hundred twenty-four".