6442536 has 16 divisors (see below), whose sum is σ = 16106400. Its totient is φ = 2147504.

The previous prime is 6442531. The next prime is 6442559. The reversal of 6442536 is 6352446.

It is a super-2 number, since 2×6442536² = 83012540222592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6442531) 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, 134196 + ... + 134243.

It is an arithmetic number, because the mean of its divisors is an integer number (1006650).

Almost surely, 2^6442536 is an apocalyptic number.

It is an amenable number.

6442536 is an abundant number, since it is smaller than the sum of its proper divisors (9663864).

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

6442536 is a wasteful number, since it uses less digits than its factorization.

6442536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268448 (or 268444 counting only the distinct ones).

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

The square root of 6442536 is about 2538.2151209068. The cubic root of 6442536 is about 186.0739675749.

The spelling of 6442536 in words is "six million, four hundred forty-two thousand, five hundred thirty-six".