6520342 has 8 divisors (see below), whose sum is σ = 9792000. Its totient is φ = 3256344.

The previous prime is 6520321. The next prime is 6520343. The reversal of 6520342 is 2430256.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 6 + 5⁷ + 2¹⁷ + 0 + 3⁹ + 4¹¹ + 2²¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520343) 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 3 ways as a sum of consecutive naturals, for example, 1284 + ... + 3832.

It is an arithmetic number, because the mean of its divisors is an integer number (1224000).

Almost surely, 2^6520342 is an apocalyptic number.

6520342 is a deficient number, since it is larger than the sum of its proper divisors (3271658).

6520342 is a wasteful number, since it uses less digits than its factorization.

6520342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 6520342 is about 2553.4960348510. The cubic root of 6520342 is about 186.8200390566.

Adding to 6520342 its reverse (2430256), we get a palindrome (8950598).

The spelling of 6520342 in words is "six million, five hundred twenty thousand, three hundred forty-two".