6520442 has 8 divisors (see below), whose sum is σ = 9793056. Its totient is φ = 3256092.

The previous prime is 6520441. The next prime is 6520453. The reversal of 6520442 is 2440256.

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

It is not an unprimeable number, because it can be changed into a prime (6520441) 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, 593 + ... + 3659.

It is an arithmetic number, because the mean of its divisors is an integer number (1224132).

Almost surely, 2^6520442 is an apocalyptic number.

6520442 is a deficient number, since it is larger than the sum of its proper divisors (3272614).

6520442 is a wasteful number, since it uses less digits than its factorization.

6520442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 6520442 is about 2553.5156157737. The cubic root of 6520442 is about 186.8209941143.

Adding to 6520442 its reverse (2440256), we get a palindrome (8960698).

The spelling of 6520442 in words is "six million, five hundred twenty thousand, four hundred forty-two".