6604640 has 48 divisors (see below), whose sum is σ = 17835552. Its totient is φ = 2264064.

The previous prime is 6604639. The next prime is 6604651. The reversal of 6604640 is 464066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1829 + ... + 4068.

It is an arithmetic number, because the mean of its divisors is an integer number (371574).

Almost surely, 2^6604640 is an apocalyptic number.

It is an amenable number.

6604640 is an abundant number, since it is smaller than the sum of its proper divisors (11230912).

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

6604640 is a wasteful number, since it uses less digits than its factorization.

6604640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919 (or 5911 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6604640 is about 2569.9494158446. The cubic root of 6604640 is about 187.6216928526.

The spelling of 6604640 in words is "six million, six hundred four thousand, six hundred forty".