6400286420 has 96 divisors (see below), whose sum is σ = 15491952000. Its totient is φ = 2196633600.

The previous prime is 6400286407. The next prime is 6400286441. The reversal of 6400286420 is 246820046.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1171856 + ... + 1177304.

It is an arithmetic number, because the mean of its divisors is an integer number (161374500).

Almost surely, 2^6400286420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6400286420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7745976000).

6400286420 is an abundant number, since it is smaller than the sum of its proper divisors (9091665580).

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

6400286420 is a wasteful number, since it uses less digits than its factorization.

6400286420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769 (or 5767 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 6400286420 is about 80001.7901049720. The cubic root of 6400286420 is about 1856.6632297793.

The spelling of 6400286420 in words is "six billion, four hundred million, two hundred eighty-six thousand, four hundred twenty".