6494740 has 48 divisors (see below), whose sum is σ = 16273152. Its totient is φ = 2128896.

The previous prime is 6494729. The next prime is 6494743. The reversal of 6494740 is 474946.

6494740 = 651² + 652² + ... + 665².

It is a junction number, because it is equal to n+sod(n) for n = 6494696 and 6494705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6494743) 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, 2212 + ... + 4228.

It is an arithmetic number, because the mean of its divisors is an integer number (339024).

Almost surely, 2^6494740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6494740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8136576).

6494740 is an abundant number, since it is smaller than the sum of its proper divisors (9778412).

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

6494740 is a wasteful number, since it uses less digits than its factorization.

6494740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 6494740 is about 2548.4779771464. The cubic root of 6494740 is about 186.5752032077.

The spelling of 6494740 in words is "six million, four hundred ninety-four thousand, seven hundred forty".