6435630 has 48 divisors (see below), whose sum is σ = 17465760. Its totient is φ = 1641024.

The previous prime is 6435629. The next prime is 6435643. The reversal of 6435630 is 365346.

It is a junction number, because it is equal to n+sod(n) for n = 6435594 and 6435603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 516 + ... + 3624.

It is an arithmetic number, because the mean of its divisors is an integer number (363870).

Almost surely, 2^6435630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6435630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8732880).

6435630 is an abundant number, since it is smaller than the sum of its proper divisors (11030130).

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

6435630 is a wasteful number, since it uses less digits than its factorization.

6435630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145 (or 3142 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 6435630 is about 2536.8543513572. The cubic root of 6435630 is about 186.0074572106.

The spelling of 6435630 in words is "six million, four hundred thirty-five thousand, six hundred thirty".