6398698320 has 360 divisors, whose sum is σ = 25379830944. Its totient is φ = 1440198144.

The previous prime is 6398698309. The next prime is 6398698331. The reversal of 6398698320 is 238968936.

It is an interprime number because it is at equal distance from previous prime (6398698309) and next prime (6398698331).

It is a tau number, because it is divible by the number of its divisors (360).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2362407 + ... + 2365113.

Almost surely, 2^6398698320 is an apocalyptic number.

6398698320 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 6398698320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12689915472).

6398698320 is an abundant number, since it is smaller than the sum of its proper divisors (18981132624).

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

6398698320 is a wasteful number, since it uses less digits than its factorization.

6398698320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2791 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 6398698320 is about 79991.8640862932. The cubic root of 6398698320 is about 1856.5096527574.

The spelling of 6398698320 in words is "six billion, three hundred ninety-eight million, six hundred ninety-eight thousand, three hundred twenty".