6628408 has 16 divisors (see below), whose sum is σ = 12481560. Its totient is φ = 3300000.

The previous prime is 6628403. The next prime is 6628409. The reversal of 6628408 is 8048266.

It is a super-2 number, since 2×6628408² = 87871585228928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6628403) 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, 358 + ... + 3658.

Almost surely, 2^6628408 is an apocalyptic number.

It is an amenable number.

6628408 is a deficient number, since it is larger than the sum of its proper divisors (5853152).

6628408 is a wasteful number, since it uses less digits than its factorization.

6628408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 6628408 is about 2574.5694785731. The cubic root of 6628408 is about 187.8464870253.

The spelling of 6628408 in words is "six million, six hundred twenty-eight thousand, four hundred eight".