6463128 has 128 divisors (see below), whose sum is σ = 20459520. Its totient is φ = 1658880.

The previous prime is 6463109. The next prime is 6463129. The reversal of 6463128 is 8213646.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6 + 4² + 6⁸ + 3¹⁴ + 1 + 2⁹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 6463095 and 6463104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88500 + ... + 88572.

It is an arithmetic number, because the mean of its divisors is an integer number (159840).

Almost surely, 2^6463128 is an apocalyptic number.

6463128 is a gapful number since it is divisible by the number (68) 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 6463128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10229760).

6463128 is an abundant number, since it is smaller than the sum of its proper divisors (13996392).

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

6463128 is a wasteful number, since it uses less digits than its factorization.

6463128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 133 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 6463128 is about 2542.2682785261. The cubic root of 6463128 is about 186.2720034662.

The spelling of 6463128 in words is "six million, four hundred sixty-three thousand, one hundred twenty-eight".