6396257280 has 704 divisors, whose sum is σ = 25656606720. Its totient is φ = 1327104000.

The previous prime is 6396257239. The next prime is 6396257317. The reversal of 6396257280 is 827526936.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63329230 + ... + 63329330.

Almost surely, 2^6396257280 is an apocalyptic number.

6396257280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6396257280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12828303360).

6396257280 is an abundant number, since it is smaller than the sum of its proper divisors (19260349440).

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

6396257280 is a wasteful number, since it uses less digits than its factorization.

6396257280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 6396257280 is about 79976.6045790893. The cubic root of 6396257280 is about 1856.2735427186.

The spelling of 6396257280 in words is "six billion, three hundred ninety-six million, two hundred fifty-seven thousand, two hundred eighty".