6490660 has 48 divisors (see below), whose sum is σ = 15043392. Its totient is φ = 2332800.

The previous prime is 6490643. The next prime is 6490661. The reversal of 6490660 is 660946.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6490661) 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, 35770 + ... + 35950.

It is an arithmetic number, because the mean of its divisors is an integer number (313404).

Almost surely, 2^6490660 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 6490660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7521696).

6490660 is an abundant number, since it is smaller than the sum of its proper divisors (8552732).

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

6490660 is a wasteful number, since it uses less digits than its factorization.

6490660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6490660 is about 2547.6773736091. The cubic root of 6490660 is about 186.5361261347.

The spelling of 6490660 in words is "six million, four hundred ninety thousand, six hundred sixty".