6640296 has 32 divisors (see below), whose sum is σ = 17878560. Its totient is φ = 2043072.

The previous prime is 6640289. The next prime is 6640297. The reversal of 6640296 is 6920466.

It is not an unprimeable number, because it can be changed into a prime (6640297) 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, 10330 + ... + 10953.

It is an arithmetic number, because the mean of its divisors is an integer number (558705).

Almost surely, 2^6640296 is an apocalyptic number.

It is an amenable number.

6640296 is an abundant number, since it is smaller than the sum of its proper divisors (11238264).

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

6640296 is a wasteful number, since it uses less digits than its factorization.

6640296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21305 (or 21301 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 6640296 is about 2576.8771798439. The cubic root of 6640296 is about 187.9587203770.

The spelling of 6640296 in words is "six million, six hundred forty thousand, two hundred ninety-six".