6442335 has 20 divisors (see below), whose sum is σ = 11549208. Its totient is φ = 3435696.

The previous prime is 6442307. The next prime is 6442339. The reversal of 6442335 is 5332446.

It is a de Polignac number, because none of the positive numbers 2^k-6442335 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 6442299 and 6442308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7549 + ... + 8358.

Almost surely, 2^6442335 is an apocalyptic number.

6442335 is a deficient number, since it is larger than the sum of its proper divisors (5106873).

6442335 is a wasteful number, since it uses less digits than its factorization.

6442335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924 (or 15915 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 6442335 is about 2538.1755258453. The cubic root of 6442335 is about 186.0720324541.

The spelling of 6442335 in words is "six million, four hundred forty-two thousand, three hundred thirty-five".