6645368 has 32 divisors (see below), whose sum is σ = 13329360. Its totient is φ = 3095040.

The previous prime is 6645341. The next prime is 6645389. The reversal of 6645368 is 8635466.

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, 17630 + ... + 18002.

Almost surely, 2^6645368 is an apocalyptic number.

6645368 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6645368 is an abundant number, since it is smaller than the sum of its proper divisors (6683992).

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

6645368 is a wasteful number, since it uses less digits than its factorization.

6645368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 523 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 6645368 is about 2577.8611289206. The cubic root of 6645368 is about 188.0065638270.

The spelling of 6645368 in words is "six million, six hundred forty-five thousand, three hundred sixty-eight".