7205320 has 32 divisors (see below), whose sum is σ = 16483320. Its totient is φ = 2833920.

The previous prime is 7205309. The next prime is 7205321. The reversal of 7205320 is 235027.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4937284 + 2268036 = 2222^2 + 1506^2 .

It is not an unprimeable number, because it can be changed into a prime (7205321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964 + ... + 3916.

Almost surely, 2^7205320 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 7205320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8241660).

7205320 is an abundant number, since it is smaller than the sum of its proper divisors (9278000).

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

7205320 is a wasteful number, since it uses less digits than its factorization.

7205320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 7205320 is about 2684.2727134179. The cubic root of 7205320 is about 193.1454245042.

The spelling of 7205320 in words is "seven million, two hundred five thousand, three hundred twenty".