6490020 has 48 divisors (see below), whose sum is σ = 19131840. Its totient is φ = 1639296.

The previous prime is 6490007. The next prime is 6490027. The reversal of 6490020 is 200946.

It is not an unprimeable number, because it can be changed into a prime (6490027) 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, 1707 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (398580).

Almost surely, 2^6490020 is an apocalyptic number.

6490020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6490020 is an abundant number, since it is smaller than the sum of its proper divisors (12641820).

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

6490020 is a wasteful number, since it uses less digits than its factorization.

6490020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724 (or 5722 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 6490020 is about 2547.5517659117. The cubic root of 6490020 is about 186.5299949121.

Adding to 6490020 its reverse (200946), we get a palindrome (6690966).

The spelling of 6490020 in words is "six million, four hundred ninety thousand, twenty".