6740240 has 40 divisors (see below), whose sum is σ = 16879128. Its totient is φ = 2488320.

The previous prime is 6740197. The next prime is 6740273. The reversal of 6740240 is 420476.

It can be written as a sum of positive squares in 4 ways, for example, as 1056784 + 5683456 = 1028^2 + 2384^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2201 + ... + 4280.

Almost surely, 2^6740240 is an apocalyptic number.

It is an amenable number.

6740240 is an abundant number, since it is smaller than the sum of its proper divisors (10138888).

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

6740240 is a wasteful number, since it uses less digits than its factorization.

6740240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507 (or 6501 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 6740240 is about 2596.1972190109. The cubic root of 6740240 is about 188.8970259214.

The spelling of 6740240 in words is "six million, seven hundred forty thousand, two hundred forty".