6540622 has 16 divisors (see below), whose sum is σ = 10886400. Its totient is φ = 2922040.

The previous prime is 6540619. The next prime is 6540623. The reversal of 6540622 is 2260456.

It is a super-2 number, since 2×6540622² = 85559472293768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^6540622 is an apocalyptic number.

6540622 is a deficient number, since it is larger than the sum of its proper divisors (4345778).

6540622 is a wasteful number, since it uses less digits than its factorization.

6540622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6540622 is about 2557.4639782409. The cubic root of 6540622 is about 187.0135252878.

The spelling of 6540622 in words is "six million, five hundred forty thousand, six hundred twenty-two".