7224912 has 60 divisors (see below), whose sum is σ = 20427264. Its totient is φ = 2383680.

The previous prime is 7224911. The next prime is 7224923. The reversal of 7224912 is 2194227.

7224912 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7224911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18673 + ... + 19055.

Almost surely, 2^7224912 is an apocalyptic number.

7224912 is a gapful number since it is divisible by the number (72) 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 7224912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10213632).

7224912 is an abundant number, since it is smaller than the sum of its proper divisors (13202352).

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

7224912 is a wasteful number, since it uses less digits than its factorization.

7224912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 519 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 7224912 is about 2687.9196416560. The cubic root of 7224912 is about 193.3203267773.

The spelling of 7224912 in words is "seven million, two hundred twenty-four thousand, nine hundred twelve".