635606340 has 48 divisors (see below), whose sum is σ = 1841071680. Its totient is φ = 163649920.

The previous prime is 635606303. The next prime is 635606347. The reversal of 635606340 is 43606536.

It is a happy number.

635606340 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (635606347) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 180906 + ... + 184385.

It is an arithmetic number, because the mean of its divisors is an integer number (38355660).

Almost surely, 2^635606340 is an apocalyptic number.

635606340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

635606340 is an abundant number, since it is smaller than the sum of its proper divisors (1205465340).

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

635606340 is a wasteful number, since it uses less digits than its factorization.

635606340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365332 (or 365330 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 635606340 is about 25211.2344005604. The cubic root of 635606340 is about 859.7972931296.

The spelling of 635606340 in words is "six hundred thirty-five million, six hundred six thousand, three hundred forty".