63312400 has 60 divisors (see below), whose sum is σ = 154021392. Its totient is φ = 25006720.

The previous prime is 63312397. The next prime is 63312401. The reversal of 63312400 is 421336.

It is not an unprimeable number, because it can be changed into a prime (63312401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32247 + ... + 34153.

Almost surely, 2^63312400 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 63312400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77010696).

63312400 is an abundant number, since it is smaller than the sum of its proper divisors (90708992).

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

63312400 is a wasteful number, since it uses less digits than its factorization.

63312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 1997 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 63312400 is about 7956.9089475751. The cubic root of 63312400 is about 398.5623390178.

Adding to 63312400 its reverse (421336), we get a palindrome (63733736).

The spelling of 63312400 in words is "sixty-three million, three hundred twelve thousand, four hundred".