632622320 has 80 divisors (see below), whose sum is σ = 1608647040. Its totient is φ = 229459200.

The previous prime is 632622299. The next prime is 632622323. The reversal of 632622320 is 23226236.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 632622320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632622323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501851 + ... + 503109.

It is an arithmetic number, because the mean of its divisors is an integer number (20108088).

Almost surely, 2^632622320 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 632622320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804323520).

632622320 is an abundant number, since it is smaller than the sum of its proper divisors (976024720).

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

632622320 is a wasteful number, since it uses less digits than its factorization.

632622320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 632622320 is about 25151.9844147534. The cubic root of 632622320 is about 858.4496676663.

Adding to 632622320 its reverse (23226236), we get a palindrome (655848556).

The spelling of 632622320 in words is "six hundred thirty-two million, six hundred twenty-two thousand, three hundred twenty".