63441630 has 160 divisors (see below), whose sum is σ = 199051776. Its totient is φ = 14198976.

The previous prime is 63441629. The next prime is 63441673. The reversal of 63441630 is 3614436.

63441630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 63441594 and 63441603.

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 79 ways as a sum of consecutive naturals, for example, 379807 + ... + 379973.

Almost surely, 2^63441630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63441630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99525888).

63441630 is an abundant number, since it is smaller than the sum of its proper divisors (135610146).

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

63441630 is a wasteful number, since it uses less digits than its factorization.

63441630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 63441630 is about 7965.0254236882. The cubic root of 63441630 is about 398.8333296758.

The spelling of 63441630 in words is "sixty-three million, four hundred forty-one thousand, six hundred thirty".