632808220 has 72 divisors (see below), whose sum is σ = 1474704000. Its totient is φ = 227905920.

The previous prime is 632808193. The next prime is 632808263. The reversal of 632808220 is 22808236.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262581 + ... + 264979.

It is an arithmetic number, because the mean of its divisors is an integer number (20482000).

Almost surely, 2^632808220 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 632808220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737352000).

632808220 is an abundant number, since it is smaller than the sum of its proper divisors (841895780).

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

632808220 is a wasteful number, since it uses less digits than its factorization.

632808220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539 (or 2526 counting only the distinct ones).

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

The square root of 632808220 is about 25155.6796767648. The cubic root of 632808220 is about 858.5337463543.

The spelling of 632808220 in words is "six hundred thirty-two million, eight hundred eight thousand, two hundred twenty".