6442635 has 8 divisors (see below), whose sum is σ = 10308240. Its totient is φ = 3436064.

The previous prime is 6442633. The next prime is 6442661. The reversal of 6442635 is 5362446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6442635 - 2¹ = 6442633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6442633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 214740 + ... + 214769.

It is an arithmetic number, because the mean of its divisors is an integer number (1288530).

Almost surely, 2^6442635 is an apocalyptic number.

6442635 is a deficient number, since it is larger than the sum of its proper divisors (3865605).

6442635 is a wasteful number, since it uses less digits than its factorization.

6442635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429517.

The product of its digits is 17280, while the sum is 30.

The square root of 6442635 is about 2538.2346227250. The cubic root of 6442635 is about 186.0749206793.

The spelling of 6442635 in words is "six million, four hundred forty-two thousand, six hundred thirty-five".