7148224 has 28 divisors (see below), whose sum is σ = 14425168. Its totient is φ = 3513600.

The previous prime is 7148203. The next prime is 7148243. The reversal of 7148224 is 4228417.

It is a junction number, because it is equal to n+sod(n) for n = 7148192 and 7148201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2989 + ... + 4819.

Almost surely, 2^7148224 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 7148224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7212584).

7148224 is an abundant number, since it is smaller than the sum of its proper divisors (7276944).

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

7148224 is a wasteful number, since it uses less digits than its factorization.

7148224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904 (or 1894 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 7148224 is about 2673.6162776285. The cubic root of 7148224 is about 192.6339002053.

The spelling of 7148224 in words is "seven million, one hundred forty-eight thousand, two hundred twenty-four".