63438568 has 32 divisors (see below), whose sum is σ = 125611200. Its totient is φ = 29953152.

The previous prime is 63438553. The next prime is 63438569. The reversal of 63438568 is 86583436.

It is not an unprimeable number, because it can be changed into a prime (63438569) 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, 73596 + ... + 74452.

It is an arithmetic number, because the mean of its divisors is an integer number (3925350).

Almost surely, 2^63438568 is an apocalyptic number.

It is an amenable number.

63438568 is a deficient number, since it is larger than the sum of its proper divisors (62172632).

63438568 is a wasteful number, since it uses less digits than its factorization.

63438568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1365 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 63438568 is about 7964.8332060377. The cubic root of 63438568 is about 398.8269130306.

The spelling of 63438568 in words is "sixty-three million, four hundred thirty-eight thousand, five hundred sixty-eight".