6740305 has 24 divisors (see below), whose sum is σ = 9585576. Its totient is φ = 4519680.

The previous prime is 6740297. The next prime is 6740341. The reversal of 6740305 is 5030476.

It can be written as a sum of positive squares in 4 ways, for example, as 937024 + 5803281 = 968^2 + 2409^2 .

It is not a de Polignac number, because 6740305 - 2³ = 6740297 is a prime.

It is a super-2 number, since 2×6740305² = 90863422986050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6740305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7437 + ... + 8293.

It is an arithmetic number, because the mean of its divisors is an integer number (399399).

Almost surely, 2^6740305 is an apocalyptic number.

6740305 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6740305 is a deficient number, since it is larger than the sum of its proper divisors (2845271).

6740305 is a wasteful number, since it uses less digits than its factorization.

6740305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 6740305 is about 2596.2097372901. The cubic root of 6740305 is about 188.8976331336.

The spelling of 6740305 in words is "six million, seven hundred forty thousand, three hundred five".