632785320 has 96 divisors (see below), whose sum is σ = 2077868520. Its totient is φ = 166993920.

The previous prime is 632785303. The next prime is 632785331. The reversal of 632785320 is 23587236.

632785320 is a `hidden beast` number, since 6 + 327 + 8 + 5 + 320 = 666.

632785320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 450373284 + 182412036 = 21222^2 + 13506^2 .

It is a super-2 number, since 2×632785320² = 800834522415004800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25860 + ... + 43980.

Almost surely, 2^632785320 is an apocalyptic number.

632785320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 632785320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038934260).

632785320 is an abundant number, since it is smaller than the sum of its proper divisors (1445083200).

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

632785320 is a wasteful number, since it uses less digits than its factorization.

632785320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18235 (or 18228 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 632785320 is about 25155.2245070482. The cubic root of 632785320 is about 858.5233900519.

The spelling of 632785320 in words is "six hundred thirty-two million, seven hundred eighty-five thousand, three hundred twenty".