6740401040 has 20 divisors (see below), whose sum is σ = 15671432604. Its totient is φ = 2696160384.

The previous prime is 6740401039. The next prime is 6740401049. The reversal of 6740401040 is 401040476.

It can be written as a sum of positive squares in 2 ways, for example, as 2118576784 + 4621824256 = 46028^2 + 67984^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (6740401049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42127427 + ... + 42127586.

Almost surely, 2^6740401040 is an apocalyptic number.

It is an amenable number.

6740401040 is an abundant number, since it is smaller than the sum of its proper divisors (8931031564).

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

6740401040 is a wasteful number, since it uses less digits than its factorization.

6740401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84255026 (or 84255020 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 6740401040 is about 82099.9454323814. The cubic root of 6740401040 is about 1888.9853030577.

The spelling of 6740401040 in words is "six billion, seven hundred forty million, four hundred one thousand, forty".