6442760 has 64 divisors (see below), whose sum is σ = 15552000. Its totient is φ = 2396416.

The previous prime is 6442721. The next prime is 6442763. The reversal of 6442760 is 672446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43166 + ... + 43314.

It is an arithmetic number, because the mean of its divisors is an integer number (243000).

Almost surely, 2^6442760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6442760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7776000).

6442760 is an abundant number, since it is smaller than the sum of its proper divisors (9109240).

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

6442760 is a wasteful number, since it uses less digits than its factorization.

6442760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 6442760 is about 2538.2592460188. The cubic root of 6442760 is about 186.0761240800.

It can be divided in two parts, 64 and 42760, that added together give a palindrome (42824).

The spelling of 6442760 in words is "six million, four hundred forty-two thousand, seven hundred sixty".