6398502336 has 140 divisors (see below), whose sum is σ = 19027173528. Its totient is φ = 2126089728.

The previous prime is 6398502329. The next prime is 6398502337. The reversal of 6398502336 is 6332058936.

6398502336 is a `hidden beast` number, since 639 + 8 + 5 + 0 + 2 + 3 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6398502291 and 6398502300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6398502337) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1797070 + ... + 1800626.

Almost surely, 2^6398502336 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 6398502336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9513586764).

6398502336 is an abundant number, since it is smaller than the sum of its proper divisors (12628671192).

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

6398502336 is a wasteful number, since it uses less digits than its factorization.

6398502336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928 (or 3909 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The square root of 6398502336 is about 79990.6390523291. The cubic root of 6398502336 is about 1856.4906983865.

The spelling of 6398502336 in words is "six billion, three hundred ninety-eight million, five hundred two thousand, three hundred thirty-six".