7998224 has 20 divisors (see below), whose sum is σ = 16689036. Its totient is φ = 3691392.

The previous prime is 7998223. The next prime is 7998269. The reversal of 7998224 is 4228997.

It can be written as a sum of positive squares in 2 ways, for example, as 2560000 + 5438224 = 1600^2 + 2332^2 .

It is not an unprimeable number, because it can be changed into a prime (7998223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19019 + ... + 19434.

Almost surely, 2^7998224 is an apocalyptic number.

It is an amenable number.

7998224 is an abundant number, since it is smaller than the sum of its proper divisors (8690812).

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

7998224 is a wasteful number, since it uses less digits than its factorization.

7998224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38474 (or 38468 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 7998224 is about 2828.1131519089. The cubic root of 7998224 is about 199.9851989047.

The spelling of 7998224 in words is "seven million, nine hundred ninety-eight thousand, two hundred twenty-four".