6440760 has 48 divisors (see below), whose sum is σ = 20933640. Its totient is φ = 1717440.

The previous prime is 6440747. The next prime is 6440771. The reversal of 6440760 is 670446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8586 + ... + 9305.

Almost surely, 2^6440760 is an apocalyptic number.

6440760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6440760 is an abundant number, since it is smaller than the sum of its proper divisors (14492880).

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

6440760 is a wasteful number, since it uses less digits than its factorization.

6440760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17908 (or 17901 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 6440760 is about 2537.8652446495. The cubic root of 6440760 is about 186.0568678005.

The spelling of 6440760 in words is "six million, four hundred forty thousand, seven hundred sixty".