63278304 has 48 divisors (see below), whose sum is σ = 167142528. Its totient is φ = 20961152.

The previous prime is 63278291. The next prime is 63278311. The reversal of 63278304 is 40387236.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14059 + ... + 18005.

It is an arithmetic number, because the mean of its divisors is an integer number (3482136).

Almost surely, 2^63278304 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 63278304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83571264).

63278304 is an abundant number, since it is smaller than the sum of its proper divisors (103864224).

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

63278304 is a wasteful number, since it uses less digits than its factorization.

63278304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127 (or 4119 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 63278304 is about 7954.7661184978. The cubic root of 63278304 is about 398.4907794618.

The spelling of 63278304 in words is "sixty-three million, two hundred seventy-eight thousand, three hundred four".