6494838 has 32 divisors (see below), whose sum is σ = 15102720. Its totient is φ = 1823520.

The previous prime is 6494837. The next prime is 6494857. The reversal of 6494838 is 8384946.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6494838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6494837) 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, 1168 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (471960).

Almost surely, 2^6494838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6494838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7551360).

6494838 is an abundant number, since it is smaller than the sum of its proper divisors (8607882).

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

6494838 is a wasteful number, since it uses less digits than its factorization.

6494838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692.

The product of its digits is 165888, while the sum is 42.

The square root of 6494838 is about 2548.4972042363. The cubic root of 6494838 is about 186.5761416223.

The spelling of 6494838 in words is "six million, four hundred ninety-four thousand, eight hundred thirty-eight".