6408630 has 48 divisors (see below), whose sum is σ = 17207424. Its totient is φ = 1653120.

The previous prime is 6408593. The next prime is 6408631. The reversal of 6408630 is 368046.

It is a junction number, because it is equal to n+sod(n) for n = 6408594 and 6408603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6408631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1642 + ... + 3938.

It is an arithmetic number, because the mean of its divisors is an integer number (358488).

Almost surely, 2^6408630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6408630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8603712).

6408630 is an abundant number, since it is smaller than the sum of its proper divisors (10798794).

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

6408630 is a wasteful number, since it uses less digits than its factorization.

6408630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6408630 is about 2531.5272070432. The cubic root of 6408630 is about 185.7469677619.

The spelling of 6408630 in words is "six million, four hundred eight thousand, six hundred thirty".