6506490 has 32 divisors (see below), whose sum is σ = 15834816. Its totient is φ = 1710720.

The previous prime is 6506483. The next prime is 6506491. The reversal of 6506490 is 946056.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506491) 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, 705 + ... + 3675.

It is an arithmetic number, because the mean of its divisors is an integer number (494838).

Almost surely, 2^6506490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6506490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7917408).

6506490 is an abundant number, since it is smaller than the sum of its proper divisors (9328326).

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

6506490 is a wasteful number, since it uses less digits than its factorization.

6506490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6506490 is about 2550.7822329631. The cubic root of 6506490 is about 186.6876499938.

It can be divided in two parts, 6506 and 490, that added together give a palindrome (6996).

The spelling of 6506490 in words is "six million, five hundred six thousand, four hundred ninety".