6740020 has 48 divisors (see below), whose sum is σ = 16708608. Its totient is φ = 2234880.

The previous prime is 6739987. The next prime is 6740021. The reversal of 6740020 is 200476.

6740020 = T₁₄₁ + T₁₄₂ + ... + T₃₅₀.

6740020 = 25² + 26² + ... + 272².

It is a self number, because there is not a number n which added to its sum of digits gives 6740020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6740021) 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 15 ways as a sum of consecutive naturals, for example, 3564 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (348096).

Almost surely, 2^6740020 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 6740020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8354304).

6740020 is an abundant number, since it is smaller than the sum of its proper divisors (9968588).

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

6740020 is a wasteful number, since it uses less digits than its factorization.

6740020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 6740020 is about 2596.1548490027. The cubic root of 6740020 is about 188.8949707128.

Adding to 6740020 its reverse (200476), we get a palindrome (6940496).

The spelling of 6740020 in words is "six million, seven hundred forty thousand, twenty".