6340581 has 12 divisors (see below), whose sum is σ = 9863308. Its totient is φ = 3901824.

The previous prime is 6340573. The next prime is 6340597. The reversal of 6340581 is 1850436.

6340581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3132900 + 3207681 = 1770^2 + 1791^2 .

It is not a de Polignac number, because 6340581 - 2³ = 6340573 is a prime.

It is a super-2 number, since 2×6340581² = 80405934835122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6340501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26980 + ... + 27213.

Almost surely, 2^6340581 is an apocalyptic number.

It is an amenable number.

6340581 is a deficient number, since it is larger than the sum of its proper divisors (3522727).

6340581 is a wasteful number, since it uses less digits than its factorization.

6340581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54212 (or 54209 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 6340581 is about 2518.0510320484. The cubic root of 6340581 is about 185.0871855914.

The spelling of 6340581 in words is "six million, three hundred forty thousand, five hundred eighty-one".