7331620 has 24 divisors (see below), whose sum is σ = 15773688. Its totient is φ = 2860800.

The previous prime is 7331591. The next prime is 7331627. The reversal of 7331620 is 261337.

It can be written as a sum of positive squares in 4 ways, for example, as 106276 + 7225344 = 326^2 + 2688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7331591 and 7331600.

It is not an unprimeable number, because it can be changed into a prime (7331627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3651 + ... + 5290.

It is an arithmetic number, because the mean of its divisors is an integer number (657237).

Almost surely, 2^7331620 is an apocalyptic number.

It is an amenable number.

7331620 is an abundant number, since it is smaller than the sum of its proper divisors (8442068).

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

7331620 is a wasteful number, since it uses less digits than its factorization.

7331620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8991 (or 8989 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 7331620 is about 2707.6964379339. The cubic root of 7331620 is about 194.2674244399.

Adding to 7331620 its reverse (261337), we get a palindrome (7592957).

The spelling of 7331620 in words is "seven million, three hundred thirty-one thousand, six hundred twenty".