6420310320 has 40 divisors (see below), whose sum is σ = 19902962736. Its totient is φ = 1712082688.

The previous prime is 6420310313. The next prime is 6420310357. The reversal of 6420310320 is 230130246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13375407 + ... + 13375886.

Almost surely, 2^6420310320 is an apocalyptic number.

6420310320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6420310320 is an abundant number, since it is smaller than the sum of its proper divisors (13482652416).

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

6420310320 is a wasteful number, since it uses less digits than its factorization.

6420310320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26751309 (or 26751303 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 6420310320 is about 80126.8389492559. The cubic root of 6420310320 is about 1858.5974627395.

Adding to 6420310320 its reverse (230130246), we get a palindrome (6650440566).

The spelling of 6420310320 in words is "six billion, four hundred twenty million, three hundred ten thousand, three hundred twenty".