6340128 has 48 divisors (see below), whose sum is σ = 16775136. Its totient is φ = 2096640.

The previous prime is 6340127. The next prime is 6340189. The reversal of 6340128 is 8210436.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 6340098 and 6340107.

It is not an unprimeable number, because it can be changed into a prime (6340127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20100 + ... + 20412.

It is an arithmetic number, because the mean of its divisors is an integer number (349482).

Almost surely, 2^6340128 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 6340128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8387568).

6340128 is an abundant number, since it is smaller than the sum of its proper divisors (10435008).

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

6340128 is a wasteful number, since it uses less digits than its factorization.

6340128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 6340128 is about 2517.9610799216. The cubic root of 6340128 is about 185.0827776625.

The spelling of 6340128 in words is "six million, three hundred forty thousand, one hundred twenty-eight".