63404528 has 40 divisors (see below), whose sum is σ = 134537520. Its totient is φ = 28707840.

The previous prime is 63404521. The next prime is 63404563. The reversal of 63404528 is 82540436.

It is a junction number, because it is equal to n+sod(n) for n = 63404494 and 63404503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63404521) 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, 58778 + ... + 59846.

It is an arithmetic number, because the mean of its divisors is an integer number (3363438).

Almost surely, 2^63404528 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 63404528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67268760).

63404528 is an abundant number, since it is smaller than the sum of its proper divisors (71132992).

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

63404528 is a wasteful number, since it uses less digits than its factorization.

63404528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 63404528 is about 7962.6960258445. The cubic root of 63404528 is about 398.7555658071.

The spelling of 63404528 in words is "sixty-three million, four hundred four thousand, five hundred twenty-eight".