7332021640 has 16 divisors (see below), whose sum is σ = 16497048780. Its totient is φ = 2932808640.

The previous prime is 7332021629. The next prime is 7332021649. The reversal of 7332021640 is 461202337.

It can be written as a sum of positive squares in 2 ways, for example, as 7331811876 + 209764 = 85626^2 + 458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7332021599 and 7332021608.

It is not an unprimeable number, because it can be changed into a prime (7332021649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91650231 + ... + 91650310.

Almost surely, 2^7332021640 is an apocalyptic number.

It is an amenable number.

7332021640 is an abundant number, since it is smaller than the sum of its proper divisors (9165027140).

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

7332021640 is a wasteful number, since it uses less digits than its factorization.

7332021640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183300552 (or 183300548 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 7332021640 is about 85627.2248762039. The cubic root of 7332021640 is about 1942.7097182069.

Adding to 7332021640 its reverse (461202337), we get a palindrome (7793223977).

The spelling of 7332021640 in words is "seven billion, three hundred thirty-two million, twenty-one thousand, six hundred forty".