6494040 has 128 divisors (see below), whose sum is σ = 24768000. Its totient is φ = 1482624.

The previous prime is 6494039. The next prime is 6494041. The reversal of 6494040 is 404946.

It is an interprime number because it is at equal distance from previous prime (6494039) and next prime (6494041).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 6493995 and 6494013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6494041) by changing a digit.

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, 7131 + ... + 7989.

It is an arithmetic number, because the mean of its divisors is an integer number (193500).

Almost surely, 2^6494040 is an apocalyptic number.

6494040 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 6494040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12384000).

6494040 is an abundant number, since it is smaller than the sum of its proper divisors (18273960).

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

6494040 is a wasteful number, since it uses less digits than its factorization.

6494040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6494040 is about 2548.3406365712. The cubic root of 6494040 is about 186.5684999712.

Adding to 6494040 its reverse (404946), we get a palindrome (6898986).

It can be divided in two parts, 64940 and 40, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 6494040 in words is "six million, four hundred ninety-four thousand, forty".