7332640 has 48 divisors (see below), whose sum is σ = 19801152. Its totient is φ = 2513664.

The previous prime is 7332629. The next prime is 7332641. The reversal of 7332640 is 462337.

It is not an unprimeable number, because it can be changed into a prime (7332641) 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, 2154 + ... + 4393.

It is an arithmetic number, because the mean of its divisors is an integer number (412524).

Almost surely, 2^7332640 is an apocalyptic number.

7332640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7332640 is an abundant number, since it is smaller than the sum of its proper divisors (12468512).

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

7332640 is a wasteful number, since it uses less digits than its factorization.

7332640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6569 (or 6561 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 7332640 is about 2707.8847833687. The cubic root of 7332640 is about 194.2764330712.

Adding to 7332640 its reverse (462337), we get a palindrome (7794977).

The spelling of 7332640 in words is "seven million, three hundred thirty-two thousand, six hundred forty".