7225140 has 96 divisors (see below), whose sum is σ = 22296960. Its totient is φ = 1737216.

The previous prime is 7225133. The next prime is 7225177. The reversal of 7225140 is 415227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45942 + ... + 46098.

It is an arithmetic number, because the mean of its divisors is an integer number (232260).

Almost surely, 2^7225140 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 7225140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11148480).

7225140 is an abundant number, since it is smaller than the sum of its proper divisors (15071820).

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

7225140 is a wasteful number, since it uses less digits than its factorization.

7225140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 7225140 is about 2687.9620533036. The cubic root of 7225140 is about 193.3223603232.

The spelling of 7225140 in words is "seven million, two hundred twenty-five thousand, one hundred forty".