8224040 has 32 divisors (see below), whose sum is σ = 20187360. Its totient is φ = 2990400.

The previous prime is 8224031. The next prime is 8224043. The reversal of 8224040 is 404228.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (8224043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8906 + ... + 9785.

It is an arithmetic number, because the mean of its divisors is an integer number (630855).

Almost surely, 2^8224040 is an apocalyptic number.

It is an amenable number.

8224040 is an abundant number, since it is smaller than the sum of its proper divisors (11963320).

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

8224040 is a wasteful number, since it uses less digits than its factorization.

8224040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18713 (or 18709 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 8224040 is about 2867.7587067255. The cubic root of 8224040 is about 201.8498377518.

Adding to 8224040 its reverse (404228), we get a palindrome (8628268).

The spelling of 8224040 in words is "eight million, two hundred twenty-four thousand, forty".