7120224 has 120 divisors (see below), whose sum is σ = 21771288. Its totient is φ = 2280960.

The previous prime is 7120219. The next prime is 7120237. The reversal of 7120224 is 4220217.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 7120197 and 7120206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106239 + ... + 106305.

Almost surely, 2^7120224 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 7120224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10885644).

7120224 is an abundant number, since it is smaller than the sum of its proper divisors (14651064).

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

7120224 is a wasteful number, since it uses less digits than its factorization.

With its successor (7120225) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (130).

7120224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 7120224 is about 2668.3747862697. The cubic root of 7120224 is about 192.3820517689.

The spelling of 7120224 in words is "seven million, one hundred twenty thousand, two hundred twenty-four".