6420001326 has 8 divisors (see below), whose sum is σ = 12840002664. Its totient is φ = 2140000440.

The previous prime is 6420001309. The next prime is 6420001337. The reversal of 6420001326 is 6231000246.

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

6420001326 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6420001296 and 6420001305.

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, 535000105 + ... + 535000116.

It is an arithmetic number, because the mean of its divisors is an integer number (1605000333).

Almost surely, 2^6420001326 is an apocalyptic number.

6420001326 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6420001326 is a wasteful number, since it uses less digits than its factorization.

6420001326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070000226.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6420001326 is about 80124.9107706211. The cubic root of 6420001326 is about 1858.5676456617.

The spelling of 6420001326 in words is "six billion, four hundred twenty million, one thousand, three hundred twenty-six".