7230540 has 48 divisors (see below), whose sum is σ = 20799072. Its totient is φ = 1875456.

The previous prime is 7230521. The next prime is 7230563. The reversal of 7230540 is 450327.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592 + ... + 3848.

It is an arithmetic number, because the mean of its divisors is an integer number (433314).

Almost surely, 2^7230540 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 7230540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10399536).

7230540 is an abundant number, since it is smaller than the sum of its proper divisors (13568532).

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

7230540 is a wasteful number, since it uses less digits than its factorization.

7230540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306 (or 3304 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 7230540 is about 2688.9663441553. The cubic root of 7230540 is about 193.3705107524.

Adding to 7230540 its reverse (450327), we get a palindrome (7680867).

The spelling of 7230540 in words is "seven million, two hundred thirty thousand, five hundred forty".