6406522 has 16 divisors (see below), whose sum is σ = 9990144. Its totient is φ = 3078000.

The previous prime is 6406507. The next prime is 6406529. The reversal of 6406522 is 2256046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11572 + ... + 12112.

It is an arithmetic number, because the mean of its divisors is an integer number (624384).

Almost surely, 2^6406522 is an apocalyptic number.

6406522 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6406522 is a deficient number, since it is larger than the sum of its proper divisors (3583622).

6406522 is a wasteful number, since it uses less digits than its factorization.

6406522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765.

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

The square root of 6406522 is about 2531.1108233343. The cubic root of 6406522 is about 185.7265995216.

The spelling of 6406522 in words is "six million, four hundred six thousand, five hundred twenty-two".