7270224 has 80 divisors (see below), whose sum is σ = 20665344. Its totient is φ = 2188800.

The previous prime is 7270189. The next prime is 7270253. The reversal of 7270224 is 4220727.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 7270194 and 7270203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37969 + ... + 38159.

Almost surely, 2^7270224 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 7270224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10332672).

7270224 is an abundant number, since it is smaller than the sum of its proper divisors (13395120).

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

7270224 is a wasteful number, since it uses less digits than its factorization.

7270224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 7270224 is about 2696.3352907233. The cubic root of 7270224 is about 193.7236295709.

The spelling of 7270224 in words is "seven million, two hundred seventy thousand, two hundred twenty-four".