6420707446 has 8 divisors (see below), whose sum is σ = 9684866520. Its totient is φ = 3192418608.

The previous prime is 6420707431. The next prime is 6420707453. The reversal of 6420707446 is 6447070246.

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

It is a junction number, because it is equal to n+sod(n) for n = 6420707399 and 6420707408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8967111 + ... + 8967826.

It is an arithmetic number, because the mean of its divisors is an integer number (1210608315).

Almost surely, 2^6420707446 is an apocalyptic number.

6420707446 is a deficient number, since it is larger than the sum of its proper divisors (3264159074).

6420707446 is a wasteful number, since it uses less digits than its factorization.

6420707446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17935118.

The product of its (nonzero) digits is 225792, while the sum is 40.

The square root of 6420707446 is about 80129.3170194280. The cubic root of 6420707446 is about 1858.6357829100.

The spelling of 6420707446 in words is "six billion, four hundred twenty million, seven hundred seven thousand, four hundred forty-six".