63402880 has 64 divisors (see below), whose sum is σ = 152779680. Its totient is φ = 25159680.

The previous prime is 63402869. The next prime is 63402901. The reversal of 63402880 is 8820436.

It is a happy number.

63402880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100165 + ... + 100795.

Almost surely, 2^63402880 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 63402880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76389840).

63402880 is an abundant number, since it is smaller than the sum of its proper divisors (89376800).

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

63402880 is a wasteful number, since it uses less digits than its factorization.

63402880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 63402880 is about 7962.5925426333. The cubic root of 63402880 is about 398.7521109809.

The spelling of 63402880 in words is "sixty-three million, four hundred two thousand, eight hundred eighty".