63838128 has 40 divisors (see below), whose sum is σ = 174618288. Its totient is φ = 20027392.

The previous prime is 63838127. The next prime is 63838169. The reversal of 63838128 is 82183836.

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

It is not an unprimeable number, because it can be changed into a prime (63838123) 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, 38301 + ... + 39932.

Almost surely, 2^63838128 is an apocalyptic number.

63838128 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

63838128 is an abundant number, since it is smaller than the sum of its proper divisors (110780160).

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

63838128 is a wasteful number, since it uses less digits than its factorization.

63838128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78261 (or 78255 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 63838128 is about 7989.8765947917. The cubic root of 63838128 is about 399.6624819507.

The spelling of 63838128 in words is "sixty-three million, eight hundred thirty-eight thousand, one hundred twenty-eight".