6499020 has 96 divisors (see below), whose sum is σ = 20401920. Its totient is φ = 1532160.

The previous prime is 6498979. The next prime is 6499037. The reversal of 6499020 is 209946.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28266 + ... + 28494.

It is an arithmetic number, because the mean of its divisors is an integer number (212520).

Almost surely, 2^6499020 is an apocalyptic number.

6499020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6499020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10200960).

6499020 is an abundant number, since it is smaller than the sum of its proper divisors (13902900).

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

6499020 is a wasteful number, since it uses less digits than its factorization.

6499020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6499020 is about 2549.3175557392. The cubic root of 6499020 is about 186.6161782389.

It can be divided in two parts, 649 and 9020, that added together give a palindrome (9669).

The spelling of 6499020 in words is "six million, four hundred ninety-nine thousand, twenty".